wEll,
having been through a few of them, I can honestly say it is not so much the DEALER but the service advisor...
I can say that TK at autobarn-mount prospect has done alright by me so far.
The parts guys at liberty are ok too.
WRT 5k service, if you can, tell them you want to watch the oil change. In lieu of that, put a cardboard box in the trunk and insist that they put the 4 empty and 1 half empty 505.01 oil bottles in it. Its about as much proof you need.
The rest is really a shakedown check.
If they give you some song and dance about the oil in bulk,. ask to see it. If its not 505.01, go elsewhere, like Lake Mills or another tdi'ers house.