Been driving that route for years. Anything around Tifton in GA is bad news. No more than 4 mph over the speed limit or they will get you pretty good. It's going to make you think a bit about speeding now, which is the point of the fine. It does suck.
My wife always gives me crap for the time I got a speeding ticket on the AutoBahn in Germany. How can you get a speeding ticket on a road without a speed limit! It appears that limitless speed is only in some areas and speed traps are still set up a couple miles outside of the drops in speed to give you time to slow down from going 120-140mph back down to 60mph.