Police car sits pointing north just south of Eight Mile Rd (Base Line Rd) on the small grass area up the curb on the side of the road that is clearly posted NO PARKING (I guess OK for him to break the law). The officer waits for cars coming down the hill. As driver approaches the down hill there is a limited visibility yellow sign at the point your looking down the hill (easily over looked) and there is a 2.75 tenths of a mile area that the speed limit is 35 mph going down the hill …before and after the speed limit 45 mph.