Transman's. I used that trick a number of times while working at a trans shop. As long as you go the recommended speed to do this it won't engage the park pawl. Don't try it at a slower speed or you will cause yourself problems and don't let it slow down. When you hit park your will hear a ratcheting noise then get back in gear quickly. Basically stick in park and pull it back out. What it does is rattle the governor loose.