We were visiting the mad river area a couple of weeks ago for the first time and found the scenery so tear inducing beautiful the found ourselves driving at or below the speed limit, because we wanted to make it last. We did this if there was nobody behind us. We watched behind us and if there was an obvious work truck etc, we'd simply watch for the next "pull off" (don't know if that's the correct term) and allow them to pass. We 'd do the same for locals who were 3 or less car lengths behind us. Also we tried to watch to see if we were the cause of locals stacking up behind us, it's easy to get outta the way with all the pull offs. Of course, we were there about a week before the leaf transition so there wasn't a ton of traffic. Follow the golden rule and treat other drivers how you would want to be treated is the best rule of the road.