You have to remember that after his accident he has vision in only one eye. That may be a factor in fatigue or maybe restrictions that he must adhere to. Also, with such a long flight I am sure the cost of fuel is a factor.
It is my understanding that he has no restrictions on flying and he did take a 3 hour plus flight in his mustang from Daytona back to Mich.
I see your point on a flight to Cali but is not even flying to the east coast. Fuel was never a factor in years past.