What to do now that I have the truck?

About two weeks ago i posted a question about my cousin and got great advice. To recap, I sold him my 2003 chevy blazer. Its been over a year since he''s had it. To make a long story short, he wanted me to pay for repairs when it broke down. I told him no because it was sold as is. The truck never gave me problems when I owned it. Well, this morning when I woke up, I discovered the truck parked in my yard near my front door. I guess he's trying to be funny. He wont come get it. What do I do next?