All rights and remedies of the City of River Oaks are expressly saved as to any and all violations of the provisions of any ordinances governing zoning or eight liners that have accrued at the time of the effective date of this ordinance; and, as to such accrued violations and all pending litigation, both civil and criminal, whether pending in court or not, under such ordinances, same shall not be affected by this ordinance but may be prosecuted until final disposition by the courts.