Free: Contests & Raffles.
Driving the roads will probably not result in much; they've definitely seen you when you see them and you aren't gonna run and elk down. Gated roads, yes; water/food sources, yes; transition routes/choke points between feed, bed, and major drainages, yes. Get away from the pressure, that's where the elk will be. This time of year, especially in that area, the elk are very educated and are acutely aware of your intentions. Pick a few spots on your map that are well between road systems, preferrably with clearcut/feed access, and hunt the edges if possible. Take three steps, confirm you still have the wind, look/listen/smell, take a few more steps, look/listen/smell, if you come across a spot that has had recent elk activity, mark it on your GPS for future reference. The guys that get elk in the Winston type areas every year normally get them in their old reliable areas. The elk are where they are because there are not many hunters present; they feel relatively safe. Find those types of areas and still hunt them.... very, very slowly. Just my .02
Any published success rates for the late archery? I bet its the lowest of them all.