Just East of Livonia, between Highway 1 Exit and Livonia
Cop sits in field (100 yards inward) north of the highway on a dirt road kinda by a tractor. After you pass he waits a little, then guns it and catches up with you by the time you are in Livonia. He have me a warning, but not so sure others are as lucky. On my way back home, I saw he had already pulled someone over using the same technique.