Tow Truck pulled car in park for a few jnches

My 2010 Chevy traverse Lt which has roughly 118,000 on the body but only like 80k on the engine since i had it rebuilt along with the automatic trans but I need my alternator replaced and it's dead cause of it during the tow i watched the driver tow my car to adjust it on the bed like a good foot. I watched the wheels rotate like a quarter rotation. My question is how bad of a strain should I expect from the trans after that?