No person in any park or trail system shall:
A. Expose or offer for sale any article or thing, nor shall he station or place any stand, cart or vehicle for the transportation, sale or display of any such article or thing, except when operating as a licensed concessionaire acting by and under the authority and regulation of the city.
B. Paste, glue, tack or otherwise post any signs, plaques, advertisement or inscription whatever, except plaques, tablets or signs, of a size, design and location approved by the city, recognizing or acknowledging donations or contributions to any city park or to public facilities therein. (Ord. 783, 3-15-2011)