I find this post rather troubling. Why was it necessary to tie your dogs up outside the truck stop? Did they have shade and water? Were they safely out of the way of traffic both foot and motorized? Obviously, no one was watching them or there would be no need to tie them up. Who would stop them from being poisoned, or let off their leashes and get hit? What if a young child walked up to them and for some unknown reason, they maul the child?
As a dog lover, I don't like it when people tie their dogs up outside a public building not designed for it. If this place had stalls to tie your dog up in, I apologize. Do me and everyone else a favor by having more respect for the friends you haven't met and YOUR DOGS!
Too, I think by your description of the trucker, there may have been more than one person with a short fuse. Bottom line is: If you had taken proper care of your pets, we wouldn't be discussing this in front of the viewing public.

Take care,
Dave