I used to drive that area a bit and rarely saw any form of law enforcement. That was a good 5-7 years ago though, so they may have upped the patrols since then. I would say 5 mph over would be fine but I think you are taking chances if you venture into the 8-10 range. There are usually quite a few folks putting along at or below the speed limit, so going fast just gets you sitting behind them for extended times. It's pretty enough that, if you are going for the scenery, you probably won't mind staying close to the speed limit....Are the bears, 2 legged, really strict, or do you think they allow the unofficial 10 mph cushion?