To make a long story short, I was trying to do a good thing for our Cavalier by having the pan dropped and a new filter installed with some fresh fluid. I let a local garage with good word of mouth handle the job instead of the dealer (my first mistake). I drove the car home (25 miles highway) and the next day I got paranoid and decided to have the dealer check the fluid level, as this car has no dip sick. I watched him leave the car running in park, remove the check plug and he added 3 quarts before fluid came out, indicaing full. I am obviously upset with the garage that did the work and have not confronted him yet. The car did not shift hard or slip as I can tell during the 25-30 miles it was low on fluid and the fluid did not have a burned smell. Any potential damage?