At stop sign on Riverchase, you cannot see Fairway to your left due to large shrubbery. If you pull up far enough to see whether traffic is oncoming when you stop for the sign, you will be past the white line. A motorcycle cop hides behind the shrubs on Fairway, and he will claim you ran the sign just because you go past the white line before stopping (so you can see oncoming traffic).
He will claim you stopped just because you saw him. He also hides there in a dark older civilian (unmarked) car.