They sit in the VFW parking lot and watch for westbound traffic that comes out of a 55 MPH zone into a 40 MPH. The 40 MPH zone starts very close to the VFW lot, so it can be difficult to slow down before they zap you. They also can face the opposite direction and monitor eastbound traffic. Their radar can pick up your speed through the trees before you see their car. The speed limit in that direction is 30 MPH and picks up to 40 MPH right in front of the lot, so it can be easy to go 40 too soon. I must admit though, I have rarely seen them pull someone over there.