Just days after copping to with the Securities and Exchange Commission over his infamous tweet, Tesla CEO Elon Musk mocked the agency on Thursday with glee, calling it the “Shortseller Enrichment Commission” (ha ha) and potentially scuttling the entire deal for, I dunno, a joke? Nonetheless, the SEC’s probably hopping mad today, and it totally deserves what happened.

The settlement forced Musk out as chairman, and fined $20 million each from him and Tesla. But it was cobbled together in a matter of weeks, after Musk haphazardly, yet definitively, stated on Twitter in early August that he had “funding secured” to take Tesla private. Funding was never secured, though, . The SEC quickly jumped into action because, well, there are laws that every corporation follows when it comes to deals this monumental—indeed taking Tesla private would be a monumental undertaking—and Musk was effectively laying waste to them.

Now, under the SEC, you can’t make false material statements. The legal issue is that you can’t mislead investors by making baseless statements. So the SEC launched an investigation, because Musk had already made the case for it. Tweets, blog posts, more tweets—it was undeniable that he fired off a tweet in haste that sent Tesla’s stock price soaring.

When the agency dug in? It found that, yes, it was a joke. , as we wrote long ago when I wasn’t frail and tired from old age:

“According to Musk, he calculated the $420 price per share based on a 20% premium over that day’s closing share price because he thought 20% was a “standard premium” in going-private transactions,” the complaint says.

Musk went on, , that the price of $420 was in jest, according to the SEC:

“This calculation resulted in a price of $419, and Musk stated that because he had recently learned about the number’s significance in marijuana culture and thought

Remarkably, the SEC put together a deal that was—no other way to put it—very kind to Musk. It allowed him to stay on as CEO, which is almost universally understood to be crucial to Tesla’s ability to raise money. It maintains an aura of being a company that’s well-ahead of the curve, and would’ve allowed him to come back as chairman in only two years.

And still, just before the settlement was about to be finalized, Musk balked, :

But Mr. Musk had given the board little choice: In a phone call with directors before their lawyers went back to federal regulators with a final decision, Mr. Musk threatened to resign on the spot if the board insisted that he and the company enter into the settlement. Not only that, he demanded the board publicly extol his integrity.

Threatened with the abrupt departure of the man who is arguably Tesla’s single most important asset, the board caved to his demands, according to three people familiar with the board’s decision.

Tesla walked away, the SEC filed suit, and Tesla’s stock price tanked. So Musk and his company came groveling back and, impressively, the SEC copped to his plea, adding an additional year to his time away as chairman.

That was that. Or so it seemed?

If you’re unsure how seriously Musk is taking the deal, wander over to (where else) Twitter. On Thursday, the same day the judge overseeing the SEC’s lawsuit asked both sides to explain why he should approve the settlement, Musk hopped online and pumped out some tweets:

He doubled down:

I get that it’s Musk, and I’m sure at least one member of his rabid fan base is firing up their Kinja burner account right now to hop in the comments section here to call me a bum who has it out for the company. Whatever.

But Musk’s dumb antics have repercussions. Musk claims to care about his investors, which include a fleet of regular ole’ people who believe in Tesla’s noble mission. After Musk’s tweets Thursday, Tesla’s stock price tanked. Things did not sound great for the regular ol’ people:

The SEC said it filed this suit because Musk’s statements harmed investors, and it’s tasked with looking out for the best interests of investors.

“An officer’s celebrity status or reputation as a technological innovator does not give license to take those responsibilities lightly,” Steven Peikin, co-director of the SEC’s Enforcement Division, said about the agency’s case.

But the SEC should’ve seen this coming. In under two months, the federal agency tasked with ensuring that publicly-held corporations are kept in check, on behalf of investors, basically gave a CEO of a multi-billion dollar company a free pass to pass off an outright lie with impunity. The $40 million combined fee, even for cash-strapped Tesla, is a drop in the bucket with a billionaire up top.

Musk played them. And now both sides have to explain to a judge by Oct. 11 why this settlement merits approval, in the face of Musk openly mocking it. Can’t wait to see what they say.