The cops are more of a "have your fun, but do it safely" type. As long as there are no major crashes or people crossing the yellow lines, they pretty much are chill. They will usually be out in force the day or weekend following any fatality, though.

And in response to Loren, taking US129 all the way from its beginning in FL to the Gap is pretty cool. I've read there are some stretches in GA where the speed limit is 85! I've only taken it as far as Atlanta (starting in Robbinsville).

Usually when I make a trip, I leave on Thursday, drive to Kennesaw (GA), and stay overnight. That way its a 9 hour drive on one day, and a short(er) 3-4 hour drive on Friday. That way, I can have some time on Friday to make some scouting runs on the Dragon, and the gravel roads that run near the Cherahola.