Upon removing a vehicle under the provisions of Section 668.10, the City shall, after ten days, cause it to be appraised. If the vehicle is appraised at five hundred dollars ($500.00) or less, the Chief of Police shall execute an affidavit so attesting and describing the vehicle, including the license plates, if any, and stating the location and appraised value of the vehicle. The Chief of Police, after complying with the above, may summarily dispose of the vehicle and execute a certificate of sale. If the vehicle is appraised at over five hundred dollars ($500.00), the Chief of Police shall give notice of public sale not less than thirty days before the date of the proposed sale.