I just went through this area last night and everything is in place - tracks, roads, suburban houses, trees, etc. The cars are also moving at what looks normal to me. Although on some other roads south towards Plummer the cars are verrrry fast! I installed the route per the readme and haven't found an issue yet, at least south of Spokane towards Plummer. The route is beautiful. I wish I had some sage advice, but I'm more of an "install and run" kind of guy. But the issues you have don't seem to be with the route itself.

Bob