Writing tickets for speeding and stops at intersection of GA 300 and GA 32. Saw spotter checking for out of state plates before I reached intersection. Stopped behind vehicle at intersection. Waited for him to cross, pulled up and stopped again. Proceeded about a quarter mile and police car comes from opposite direction over hill and around a blind curve, I- turns at intersection pulls me over and write citation for “rolling stop” which officer could not have seen even were it true. Over next four miles saw four out of state vehicles pulled over. Speeds on strip this four lane highway change about five times ranging from 45 to 60 mph.