The local cops recognize that Deal's Gap is an attraction for bikers and sports car enthusiasts. They DO come out in force on holidays and sometimes when there are large planned events. Otherwise, I think they turn a blind eye most of the time. If you're going to go, go mid-week on a non-holiday. You'll have a lot more unobstructed road to enjoy.

Personally, while the Gap IS a blast to drive, it's far from the only road you can enjoy in the mountains. Anywhere there are mountains, there are curvy roads. You just have to seek them out. While many of the roads won't be as perfectly curved, banked and paved as the Gap, an awful lot of them will have less traffic and thus be more enjoyable to drive.

Be creative. Plan a road trip that includes a lot of interesting back roads to get TO your destination (be it the Gap or elsewhere) rather than driving a boring interstate for 16 hours to get there just to drive one road with way too many other people. Online mapping is your friend. (GPS can come in handy, too!)