Upon declaring the existence of a motor gasoline emergency, the governor, with the advice of the energy policy committee, shall select and implement any combination of the procedures described in ARM 14.8.122 and ARM 14.8.123 as he considers appropriate. The governor may modify any procedure as he considers necessary or as the circumstances of the motor gasoline emergency change. Any energy supply alert measures in effect at the time the energy emergency is declared shall remain effective except as ordered by the governor.