Did you ever hear back from the dealer? I got an email from BMW asking me to evaluate a service visit. I gave the SA and the dealership good marks. At the end of the survey, it asked me if I had any other comments or suggestions for BMW engineers about the car itself. In that section, I wrote that the self-dimming mirror is way too slow to get dim, and that the garage door opener built into the mirror is also really weak because I have to be really close to my garage for it to open.
Next day I got an email from the service manager asking me to elaborate about my bad service visit, and I got an email from the SA himself apologizing for the bad service and telling me to bring the car in to get the mirror checked. Then I had to write emails to both explaining that I had no beef with the dealership or my last service call, I was just making a general complaint about the car. I felt bad that the final comments in my survey were taken as a complaint against the SA.