When an alarm business's service to its subscribers is disrupted for any reason by the alarm business, or the alarm business becomes aware of such disruption, it shall promptly notify its subscriber by telephone that protection is no longer being provided. If, however, the alarm business has written instructions from its subscriber not to make such notifications by telephone during certain hours, the alarm business may comply with such instructions. (Ord. 0-84-04, 2-7-1984)