Pretty awesome question. I hunt and ride so here's my centavo. Hunters will always hear and see you coming before you see them. If you're on a public road and not on private land don't worry. Personally I'd throw a cheap blinky fore and aft on the bike and wear my safety green jacket. I wouldn't ride during the first or last hour of daylight either. Visibility is poor and anticipation is high. Some hunters posting up near roadways will like that you 'push' deer to them while others will not like that you 'spooked' the deer away from them. The latter should anticipate traffic if they post close to a road. And finally, it's illeagal to fire a weapon in the direction of a road if you're within a certain distance. It's usually around 100 yards but you can check that on Minnesota's DNR website. I'd say you're safe, go enjoy some crisp air and fall colors!