I have hiked the smokies 7 times and have never seen a ranger. Most of the time I have stayed in the shelters (which I hate doing), but I always carry a tent. Even with permits the shelters are often full. People don't get permits or go off schedule. Play by the rules, but I have never hiked the park where I did not have to tent at least one night. This includes one march when there was 6 feet of snow on the ground. LW might even be tempted under those conditions. Maybe not.