It's difficult to be sure about George.
He spoke so derisively about other companies that failed to deliver, and now because of the inevitable paperwork that comes with a product that takes over your car for you at times (level-3 autonomy iirc), he too fails to deliver.
If he leaves to join Tesla, it seems pretty irresponsible, given that he's raised $3.1M and has a team of employees relying on him.
But that's all speculation until we see what comes next.
Perhaps I'm unimaginative at ~1:30am, but I can't imagine what he wants comma.ai to do, unless he sells or licenses the product to automakers who can do the paperwork for him.