Never admit fault in the heat of the moment. If you are going to admit to fault, do it after you have had time to reflect and do it from as objective...
Could be something simple. Can your pets go into the garage? A cat getting a fright and jumping on the car might trigger the sensor. I've had mine go...
A year or two back there was a similar incident in our street, except it was the SAPS who were chasing the fugitive, and they refused to go into the...