Nothing contained in any provision of this traffic code shall apply to an act done or omitted, or to an offense committed, at any time before the day that this traffic code became effective. Such act or omission shall be governed by, and any such offense shall be punished according to the provisions of, the ordinances existing when such act, omission or offense occurred, in the same manner as if this traffic code had not been enacted.
(Sec. 15-26.7, R.O. 1978 (1983 Ed.)) (1990 Code, Ch. 15, Art. 26, § 15-26.6)