Sorry to hear that... That's the reason I always sell my trucks out right. Dealers gotta make it worth there wild to sell your truck or auction it off at the dealers auction. But I have multiple trucks so I can sell one and have something else to drive so I can shop around for a new one so my situation is little different than most. I know few people trying to sell their newer 1/2 ton trucks that have been complaining about its hard to sell for a good price. Everyone wants a 3/4 or 1 ton diesel or a smaller gas truck like a tacoma now a days is my guess.
Maybe put your truck up for sale for what you think is fair see if you can sell outright.
2006 Grand Surveyor 240BH
Pullrite Superglide Hitch
2013 Ford F-350 Ultimate Lariat Edition with 6.7 Power Stroke