I'd like to see that around here. The communities in the North Salt Lake (around Hill AFB) are all really quite good when it comes to infrastructure. Lots of wide (full 8-12 ft) bike lanes, MUPs, sharrows with lots of signs saying bikes may use full lane. And while the drivers are better than a lot of places I've lived, there are still a lot of people with terrible attitudes towards bikes.
Making them slow a little and putting other restrictions in might help with the safety. It probably won't help with their attitudes, though.
I can only think of a few places where they might implement a slow streets program here though, without major infrastructure work.