Don’t give him your plates. I would think if he has a bill of sale he would be fine. It’s really his problem, not yours. Suggest that he call the DMV in PA.
If ethics are poor at the top, that behavior is copied down through the organization - Robert Noyce
2018 Chevy Silverado 3500 SRW Duramax
2019 Coachmen Chaparral 298RLS