HEALTH: I aint a qualified Rabbi by any stretch of the imagination. However I am sure most people will agree, that someone who gets behind the wheel knowing that he is tired, has the din of a Roidef.
Haba lehargecha hashkeim lehargoi.
You had better hide your identity, or else next time I see you behind the wheel I may end up reporting you.
The sensible solution is If you feel lethargic, take a nap before getting in that car, or get another driver to take you from a to b!