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; and/or
(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.