Depends a lot on what kind of road you're on. Interstate highway? I'd absolutely trust it to cross the country while I napped. Downtown urban cores where I c

Depends a lot on what kind of road you're on. Interstate highway? I'd absolutely trust it to cross the country while I napped. Downtown urban cores where I can expect bicyclists in the road and delivery trucks parked in a lane? Not a chance. Anywhere that involves making an unprotected left turn? Gambling with your life, there.