No person may park a vehicle upon any highway for the principal purpose of:
1. Displaying the vehicle for sale.
2. Washing, greasing or repairing the vehicle, except repairs necessitated by an emergency.
3. Soliciting business.
4. Selling merchandise from the vehicle except in a duly established market place, or one so authorized or licensed by the local authority.
5. Storage, or as junkage or dead storage, for more than 72 hours.