Go for it. Riding that area is one of my wishes. Next time I'm there, I think I'll be renting one too. My aunt actually lives in Folsom, about 3 miles from the dealership there. Went in with my dad when we were all there last Thanksgiving, and looked (my dad rides and HD). Seems like a nice shop. I know they do quite a few rentals. And riding the Sierras should be fantastic this month - no matter what you're on!
So go for it, we'll forgive you later!
Becky