When going North/West on HWY 85 at underpass HWY 17, there a hill to thr right. Highway Patrol have an exclusive place on the hill hidden from all eyes. They watch the coming traffic going North on HWY 85 , and also cars exiting HWY 85 taking exit to go HWY 17 South. Mostly the patrol uses visual estimation and will go after cars that go faster than the rest of traffic, or if you spped on the exit ramp toward HWY17 south. Be carefull there. I saw them again today, looking for you.