301.26  PARKING FOR CERTAIN PURPOSES PROHIBITED.
   No person shall park any vehicle upon any street within the Municipality for the principal purpose of:
   (a)    Displaying such vehicle for sale.
   (b)    Displaying advertising.
   (c)    Washing, greasing or repairing such vehicle, except repairs made necessary by an emergency.
   (d)    Relieving the crowded condition of any parking lot, used car lot, automobile sales lot, repair garage, automobile sales agency or used car sales agency.