It's illegal to speed. Illegal to drive too slowly. Illegal not to come to a complete stop at a stop sign. Illegal to turn without signalling. Basically there are so many things that are illegal it just doesn't matter anymore. Chances are you violated at least one of these laws today. I know I did. I mean I know a guy that did.
Wear these glasses and the cops won't know you're sleeping:
When they remove the steering wheel, or when cars are so good they will drive themselves 90% of the way, it would be impossible to ask people to not fall asleep. You will be sitting there doing nothing.