OP, I'm in the auto sales industry locally for a Honda/Acura dealer. I've got a friend and 2 former coworkers at BMW Northwest in Fife. I've found their sales department to be the easiest to work with thus far. Seattle is my destination for service.
If you're not already in contact with a dealer, PM me and I'll give you my friend's contact info at Northwest.
2011 M3 Coupe - DCT - Lemans/Black
Previous: 2008 M3 Sedan, 2007 335i, 1999 M3, 1997 M3 1988 535is, 1996 328is