File a report with the police/sheriffs office then go to DMV and see what the law allows you to do. I had a similar situation and all I needed to do was put a note on the vehicle stating that it was parked on private property and would be towed if not removed in 72 hours. After the 72 hours passed, I found a tow/scrap company that wanted it and they hauled it off. The tow/scrap company has the right to put a lien on the vehicle and apply for title. Good luck.
