In case any sign shall be installed, erected, constructed, or maintained in violation of any of the terms of this Ordinance, the Zoning Inspector shall notify in writing the owner or lessee thereof to alter such sign so as to comply with this Ordinance. Corrective action must be taken within thirty (30) days and completed within sixty (60) days. Failure to comply with any of the provisions of this chapter shall be deemed a violation and shall be punishable under Section 1141.99.