Upon notification by the Alarm Officer that an alarm system is activated, the alarm subscriber, or the representative or alarm agent of the alarm subscriber, shall immediately proceed to the location and silence the alarm. The alarm shall be silenced within thirty minutes after notification when the alarm system is protecting a residential structure or within forty-five minutes when the alarm system is protecting a commercial or industrial structure. Alternative to providing such response, the alarm system may be equipped with an automatic shut-off device which shall silence the alarm within fifteen minutes after activation when the alarm system is protecting a residential structure or within thirty minutes of activation when the alarm system is protecting a commercial or industrial structure. The failure of an alarm subscriber to comply with the response and alarm silencing time limits set forth herein shall be chargeable as a false alarm. (Ord. 649 § 2, 2012)