No, he did not.
I'm not so sure why actually reading the SEC agreement and Tesla's social media policy is so difficult for some people in this thread, given that they've been linked right here.
Let me put this in all caps, bold, italics, underline, and the largest possible font, to make it clear:
ELON IS NOT REQUIRED TO HAVE EVERY TWEET READ AND PRE-APPROVED.
Is that clear enough?
His obligation, imposed by the SEC settlement and Tesla's social media policy (which in turn was a result of the settlement), is that he must seek pre-approval for any tweet containing material information. That's it. There is no requirement that every tweet he makes must have a babysitter examine it for errors first.
As was made very clear by his council, and is obvious to anyone with half a brain, he was in no way attempting to post material information - just reiterate guidance.