Hes truely and rightly screwed
Staying out of Folsom should be his only objective right now. His lawyers should make a deal with Waymo for a license to the IP in return for his Uber shares (assuming he really has $250M worth of shares). Alternatively if Uber really was complicit in his theft of IP then he should be making a deal with the California state's attorney office to throw Uber under the self driving bus in return for a reduced sentence.