I have a 2016 dodge challenger hellcat. I received...

I have a 2016 dodge challenger hellcat. I received a recall for the catalytic converter s. So I contacted superstition springs Courtesy dodge. They completed the work in two days which they notified me to pick up my vehicle. When I picked up my vehicle it was covered with some type of overspray or chemical substance not sure what. I asked the service advisor Where are the car was parked . He said somewhere out in the parking lot. I would expect that car to be taken care of because of the fact I brought it down spotless and just recently ceramic coated the car. I spent the better part of the night removing the chemicals or whatever was on the paint. When I drove home it was an awful burning smell coming from the bottom of the car. Once I looked underneath there was oil from greasy handprints all over the exhaust system.Eventually it burned off. Needless to say I will not be purchasing a car or taking my car for warranty to this dealership.