Every motor carrier of solid waste in residential service shall provide and maintain regularly scheduled pickup service. Exceptions to the regularly scheduled pickup service may be made for reasons beyond the motor carrier’s control, including, but not limited to, dangerous road conditions, inclement weather, flooding, road closures. Exceptions to the regularly scheduled pickup service based on such conditions will be at the motor carrier’s discretion: Provided, That nothing herein changes the universal service obligation of any motor carrier. Any interruption of service in this regard that lasts beyond five days shall be reported by the motor carrier to the commission and the motor carrier and the staff of the commission shall establish a contingency pickup arrangement for the affected customers that the motor carrier shall implement until the condition causing the service interruption is alleviated.