After proclamation of a civil emergency by the chief administrative officer, he may order a general curfew applicable to such geographical areas of the municipality or to the municipality as a whole as he deems advisable, and applicable during such hours of the day or night as he deems necessary in the interest of the public safety and welfare. Said proclamation and general curfew shall have the force and effect of law and shall continue in effect until rescinded in writing by the chief administrative officer, but not to exceed five (5) days.