Thanks for all the replies! Sounds like Seattle is not exactly a hotbed of roadgeekery at the moment. I may follow up with one of you Portlanders at some point if I can't come up with anything closer.
Actually, I'm going to be visiting family in Utah later this spring...maybe I'll try that regional board to see if I can track down anyone in that area.
I live in Upstate New York, and did try out for Jeopardy about 3 years ago. I took the online tryout quiz but was not selected for an audition. I do make it to Washington State about once a year, but I tend to visit only the Vancouver area as I have family around Portland and Salem.
There are a few roadgeeks in the Seattle area that I know of that post to other road-related discussion groups, but I am not sure if they read the AARoads Forum. John Spafford from Tacoma rings a bell, as does Floyd Rogers and maybe Robert Cruickshank. There was a road meet in Portland last year and there was talk about possibly having a meet in the Seattle area down the line.
As for Utah, there are a few roadgeeks there as well, but once again, I don't know if they follow the AARoads Forum as opposed to other methods of discussion.