I had a similar experience with the dealership where we purchased our Crossfire; it was the third and now last car we had bought there within a four year period. Every time the touched the car they inflicted more damage then when I arrived:

- Installed wrong oil
- Took the wrong door apart when trying to fix wind noise
- Did not connect the cable for the driver side door handle
- Broke the inside driver side door pull
- Left greasy finger prints on headliner
- Never fixed wind noise, couldn't even find any TSB on problem

I ended up in the owners office with a list of TSB and print out from this forum that dealt with wind noise that their "Crossfire Certified Technician could seem to locate. Then I asked for and got the number of the Regional Service Manager. I laid out the chain of events and list of issues I had with the car and the Regional Manager guaranteed me that the issue would be resolved even if they had to send the car to the local Mercedes dealership but first he would like me to take it to another Chrysler garage( he made the appointment) who also sold and serviced BMW's and Audi's to see if they could resolve the problems. It turned out the new garage did an fantastic job and when the Regional Manager followed up after the service he told me he thought they could resolve the problem since they had access to other service technicians with European car experience and confessed that most dealerships are just not familiar enough or adequately equipped to properly service the European cars. All dealers that sell Crossfires are suppose to have at least one trained technician on staff and all the tooling but that doesn't mean that is who will be working on your car when you take it in for service, in my case it wasn't most of the time. So my advice is try to find a dealership who also sells more then just Chrysler and Dodge, preferably something European.