OP here. Our friends were required to park in a lot and not move without a CDL licensed driver or face $25,000 fine. Yes, patrolman asked them to get the alcohol out of the suitcase that was in the truck box and then he dumped it on the road.
Where does one go to learn about vehicle length and CDL requirements? Apparently it doesn't matter how the truck or trailer is titled, used, or whether it was carrying anything for commerce. X length = commercial according to patrolman. I'm getting frustrated trying to find it online. Finding lots of info but not that stuff.
You all have been quite helpful. Thanks so much.