Probably until his favor with the executive branch comes to an end. Until that happens he'll keep getting federal/defense contracts and regulation won't be a concern.
That's normal. That's how defense contractors stay in business even when their products flop. There's something else going on with Elon. Can't put my finger on it, which is to say I don't understand investment bank fuckery well enough to identify who is levitating Elon's valuations.