Thanks, Pieman. That part does make sense, but he stops here for over an hour... I think requiring the motor for the shredder excludes this truck from the 3-minute idling law, but isn't there a 5-minute idling law in place for almost all trucks as well? I just can't imagine that it requires an hour to shred papers from one business.

Hard to say, there are exceptions so it may fit under one.

Have you asked the driver? Once in a while I'll ask guys why they idle their trucks. I don't do it in a confrontational way, I just ask.

I have yet to receive a logical answer.

I haven't seen the truck recently at all, so I'm changing this to closed.