Safe bike paths in Bloomington?

car tracks on bike lane800I know that separated bike paths are a great idea, it certainly makes biking feel safer, in most cases. But as I was riding to Griffy Lake the other day, I noticed that car drivers can and do make some mistakes that threaten even well separated bike paths. This picture was taken on Old 37, just a hundred yards from the intersection of Cascades and 4 lane Walnut not far from Griffy Dam. The sign says 30 MPH, but the motorist who ran into it, and onto the bike path must have been going much faster.