jsmith,
Take a look at the thread I started to try to find out if my harness had been changed:
http://www.peachparts.com/shopforum/showthread.php?postid=127615&t=1654#post127615
I went to my local dealer and had them run a "Vehicle Master Inquiry" report. This item came up under the "Campaigns" section. The service advisor just told me on the phone that if the repair hadn't been done that the printout would show it as open(mine says closed). This would give you some additional leverage with them if you get the report and it shows that they ran an active campaign but yours is still open. Maybe you've been down this path, but it's an idea.