I tried again.. I went there thinking things had changed.. but, alas, they hadn't. I went to the parts counter and asked for some parts pricing (OEM parts). I was given the price and, when I asked for the part numbers, I was told "that information is proprietary". WHAT?? OEM part numbers are proprietary? Thats funny because the parts I needed, I found online (including the GM parts number). I just don't get it. I understand that dealers need to make money on parts, but not giving out the part numbers in order to "trap" your customers? CMON!.
By the way, the prices they quoted me were 2 times the price of what I found online, and the labor (number of hours) they wanted to use to "fix" my car was 3 times what a separate, independent shop quoted me.
They really just don't care about customers after you purchase a car. Its too bad because some dealers do.