While I agree with you about having no idea about the other drivers, it would not be true in relation to some people like myself. I have worked 11pm-7am for over thirteen years. That is my normal schedule. I have a really hard time staying awake at WDW in the afternoon and evening because that's my normal sleep time. Then again I get frustrated, because no matter what time I eat dinner down there, I know I'm going to wake up at 2:00am wanting to eat, because that is my normal dinner time.

Even on vacation my body knows when it's time to sleep and when it's time to eat. It's biorhythms don't change just because I'm on vacation for a week or off work for a few nights. No matter how exhausted I may be after doing the parks down there all day, I guarantee you I'm wide awake at 2:00am.

I'd be more dangerous driving 3:00pm-9:00pm.

Thanks goodness I fly though, because as you said you never know about the other drivers on the road.