We live in SC and travel all the time into NC. We have never been stopped and have passed many state and local police. I think it just depends on the officer at the time.
While playing on the dragon in TN, they will pull you over for no helmet. In GA, we have gone down there many times and have had no problems but friends of ours who live down there got one ticket but got it tossed out in court. To this day they still ride with no helmet.
Unfortunately there isn't much storage on these. Otherwise I would keep a brain bucket for warmer weather and full face for the rain/cold weather.