We saw a white Ford SMB camped at Deception Pass State Park (Whidbey Island, WA) last Saturday, Jan. 12th. We drove past a couple times looking for a spot, then leaving the next day, but never saw anyone around. I was afraid to just knock on the window in case you/they were there for the same reason my wife and I were.
We'll be back up there this weekend with the kids. Hopefully we'll go see the bald eagles along the Skagit river after we play on the beach.