Admitted violations of parking restrictions imposed by this Code of Ordinances may be charged upon a simple notice of a fine payable at the office of the City Clerk. The simple notice of a fine shall be in the amount of twenty-five dollars ($25.00) for all violations except improper use of a persons with disabilities parking permit. If such fine is not paid within thirty (30) days, it shall be increased to thirty dollars ($30.00). The simple notice of a fine for improper use of a persons with disabilities parking permit is one hundred dollars ($100.00). Failure to pay the simple notice of a fine shall be grounds for the filing of a complaint in District Court.
(Code of Iowa, Sec. 321.236 [1a] & 321L.4[2])