Dupe At Dealership

I was working today at Larrys, I sold a Riata to a individual named Dennis. After he purchased the vehicle he did not have keys to it and there was inventory in the glove box and trunk (Gas cans, guns, vape juice, fishing pole, and fishing bait). License plate on said vehicle was EW3J6805, I was instructed by management to follow him to the impound lot and confirmed his actual vehicle was there. He was able to pull the vehicle out and had keys. I then took the (dupe) vehicle that spawned at Larry’s originally and ocean dumped it. Staff at Larry's said this issue has happened before and they requested that i submit a ticket and post under feedback so staff can track these issues. Unfortunately Medal was not working for me at the time so i really only have the customers full name and the license plate # for the dupe vehicle. The license plate on the vehicle and the license plate when in the glove box do not match.