In time of shortage of water, the Mayor, with concurrence of the Council, shall by proclamation, limit the use of Pressurized Irrigation water to such extent as may be necessary. The Mayor shall have this authority without concurrence of the Council in the case of an emergency. In this event, the proclamation shall be reviewed at the next available regular meeting of the Council. It is unlawful for any person to violate any proclamation made by the Mayor pursuant to this section.