I once had a sensor replaced and to honest it wasn't that expensive. Be glad that they did a nice job on your paint because thats far more important than the easily repaired sensor. While your at it make sure they put everything else back together correctly. I had bodywork done on a car in the past and remember the bumper was not installed properly. Also make sure all the fasteners and bolts are installed. Other than that enjoy the car!
02 C32 AMG
84 190E 2.3 5 Spd