(b) Each cable operator shall restore interrupted service not later than twenty-four hours after being notified by a subscriber that service has been interrupted, unless: (1) Service cannot be restored until another company repairs facilities owned by such company and leased to, or required for the operation of, the cable service; (2) the interruption was caused by an act of nature; or (3) the cable operator is unable to restore service within twenty-four hours due to extenuating circumstances. In the event of such extenuating circumstances, the company shall restore service as soon as feasible and then submit a written notice to the commission indicating that service has been restored and explaining the nature of the extenuating circumstances.