Watch out; a cop will often sit in the parking lot next to Arco gas station and tag people coming westbound from a 50 zone to a 40 zone. He may also sit about 2 blocks east of Arco in a parking lot by the Polaris ATV shop in Cornelius. Cornelius is heavily patrolled by cops but you are relatively safe doing 5 over, especially in heavier traffic when it is more difficult to pick a target.