Starting off your 1st post with negative coments about the local VW dealer that sponsers our show is not the best start.
Technically, he didn't really say anything negative about the local VW shop. He was asking if there was one that was not going to rob him blind. Sorry for the input, but I thought that should have been cleared up. 
Still need to tread lightly... you never know when the guy who probably worked on it at the dealership be the one responding to your post...
I agree, you probably need to find out what the code its throw is. If this occurred quickly after the service done by the dealership, contact the service manager that took care of you; it might be related. A connection might be loose or something simple. If its related to the service (i.e. happened the week afterwards or something), then you might get them to at least run the engine code for free. You'll need to know what the code is before anyone can hone in on what's wrong.
Travis listed some of the shops. You can browse the list that is linked on the bottom of our home page:
http://www.volksfolks.org/vwshops