Maybe the hardwire kit sensed a battery voltage level lower than the set operating threshold and cut power to the dashcam prior to the damage event? Or that it was damaged at night without enough ambient light for the motion sensor algorithm to trigger a recording? It would be great if the A129 logged dates and times the dashcam is powered on, off, in to/out of parking mode, etc, so you could better know how to enhance the installation for longer parked recording times, if that is the case. If your son really is being targeted, then some alternate power source like a cellink might be necessary to catch the perp.