Can you leave your truck unatended for about 5 hours?

you have to be with the truck the whole time or it will be towed

I don't know. But I think is going to raise security concerns

Why would you want to leave a truck near a busy rest stop? I think security would question your motives.

5 hrs ok, I wouldn't leave it there longer than that

Yes

I don't see why not. It's seem busy there. I would leave near the front.