Hi,
You should still call your insurance agent. It seems like this guy is going to call his agent, and then put in a claim. This will go back on your insurance, as they will surely blame you and your trailer for making contact.
If you do not ocntact your agent within a certain time, they will say "We no longer need to pay, because you never told us about the potential claim" But if you do contact them, you do not have a fault accident, unless it turns out that way. And a replacement pickup bed, and it's paint job can run well over $2,000. You do not want to be stuck with that bill.
Good luck!
Fred.
