Legal recourse on a car buyer selling a vehicle that had a lien on it?

I work for a car dealership (small one) had a guy buy a truck. Within a few months he took off to California, and sold the truck for a low cash price without a clean Title. Because he'd just purchased it and had a contract sale for about 7,000 dollars still left on the truck. The person that bought it, called pretending to be looking at it parked with a "For Sale" sign, and wanted to know if there was a clean title. I let him know it was essentially stolen, and got his number off the caller ID. According to Florida DMV the only thing we can do as a Dealership is file a failed Repossession via the DMV. Which is pointless because the original buyer has to live at the address listed with the DMV. (he hit the road to CA) Meanwhile our Dealership has a really nice truck driving around the Springhill/Brooksville, FL area.. unregistered, uninsured, illegally tagged, illegally sold. Cant take the buyer to court, he move to CA.. Is there NOTHING else we can do? I can't believe the newest "buyer" hasn't gotten pulled over.