Dude, seriously make sure they topped off your transmission fluid CORRECTLY. If they did not do this when they changed your transmission filter, you could be looking at a new tranny in the next few months. This is not a small matter, they must go through the whole procedure of running it through all the gears, driving it around the block, getting it to the right temp, or you could end up like me with a new tranny rebuild just a few months later. Not trying to scare you just make sure that level is spot on.