Thank you for your service JJDick. #1. Have your son pay for the damage and chase the
parts. #2. Why does he have the trailer hitch ball on his car if he isn’t towing a trailer at the time?
#3. Since you are deployed and he probably is the man of the house have him install it himself. #4.
If he doesn’t want the do that then he can pay the dealer or the body shop.
Good points but one thing I would note: a trailer hitch can actually save your bacon. I have two examples of it saving bacon:
1. My custom van - about 20 years ago my pressure differential valve split and dumped all brake fluid instantly as I was shifting into reverse. My driveway is on a steep hill and the wheels were slightly turned. Van jumped into reverse, whipped backwards down my hill off the side of the driveway and should have rolled. It didn't, and when I looked at it later (after I changed my pants and comforted my neighbor, whose house I almost demolished) I could see why - the trailer hitch ball pin stuck into the ground like a javelin and gave the van something to pivot on. Crazy but true. It left a huge dent in my neighbor's yard and packed mud everywhere on the hitch.
2. Two days ago going up to check on something at my job. Mountain road was completely froze over, and on a long straightaway there was a car hanging perilously off the edge of the cliff past the guardrail, facing backwards where it obviously had spun out. Went over and looked at it and it looked like it was just barely hung on a tree. When I got closer, the only thing holding the car up was the trailer hitch ball - he had one of the 3-ball assortment ones - hung into the side of the tree. Amazingly, there was no damage to the car, as the hitch jammed into the tree and there was about 2 inches of clearance between the back door of the SUV and the tree.