Does anyone know the approximate pinpoint accuracy of the GPS enabled auto-raising on the SAS? I only need the SAS to raise when going onto my driveway, but noticed it starts to raise when I hit my street about 1/2 mile away. Also, it wants to stay raised when I go into my garage... I prefer it lower to Standard while parked for long periods of time. I searched the threads and couldn't find the answer. Thanks in advanced.