I had a friend that did this at least 3 times. He would drive POS cars and when they died, sign the ownership and leave the ownership and keys on the seat at the side of the road. Whoever picked it up got the car, then he'd buy a new POS car, throw his plates on it and keep going. This was a few years ago, things must have been easier then because there was no way he was getting official recall letters on 15 yo toyota corollas or hyundai ponys to cross back into Canada. AFAIK at the border it was just one crap car in one crap car out, have a nice day.