No motor equipment, motor vehicles, motor graders or street, water and sewer equipment belonging to the city shall be used for any private use or purpose or any use other than that of the city, except with consent of the City Council; provided, however, that police cars and fire trucks may be used in the city, on permission of the City Manager, for such civic functions as parades.
(`87 Code, § 2-6) (Ord. 1969-9, passed 6-3-69)