Is any of this typical?It would b very unusual for a regulator not to give a few days flexibility when asked by a big company/respected legal team.
An alternative theory is that Musk thinks the next year is crucial and so he wants to stay CEO for that period (while fighting the suit) even at a greater risk of a lifetime ban later.
Elon's compensation package requires being CEO or Chairman and Chief Product Officer with all leadership reporting to him. The next few years will be a big inflection point in the stock price. Huge hit to lose that.