I wonder what his tickets were for;
looks like he had brakes and lights.
License type maybe? CGVW rating?
At least he had a slow moving sign on the back. Was the trailers brakes operable using whatever is on the tongue? How fast was he going and how far?
That's what I was wondering too. Maybe he was traveling too fast, but I've seen enough double hay wagons being towed that seemed far less safe than this trailer.