It shall be unlawful and an offense for any person to place or leave any vehicle of any kind upon the public highway, street or alley within the corporate limits of the city so as to hinder or obstruct the free use of such highway, street, alley or thoroughfare. Provided, that nothing herein contained shall prevent the proper use of any vehicle upon or along the public highways, streets or alleys of the city as provided by the city ordinances. (1980 Code § 20-84)