(a) No person shall post, paint, display, affix, construct or carry any placard, flag, banner, sign, or model or other similar item or display any such item by means of aircraft, kite, balloon or other similar aerial device, in, on, or above the surface of any park, including any park street, for any purpose whatsoever without a permit issued by ParksCorp.

(b) Notwithstanding subdivision (a) of this section, any person may display or carry any item described in subdivision (a) of this section, without the aid of any aircraft, kite, balloon or other similar aerial device, where the space on which the message of such item is contained has a height no greater than two feet and a length no longer than three feet, and that such item takes up a total area of no more than six square feet.

(c) Any person who posts or paints a sign upon park property, including any park street and the perimeters of any park, whether or not pursuant to a permit issued under this section, shall be responsible for removal of such sign pursuant to the conditions in such permit, or immediately if no such permit has been issued. Failure to remove any sign that is painted or posted on such park property, or that remains on such property, other than in compliance with such permit, shall constitute a violation of these rules.

(d) In the event that a sign is, in violation of this section, posted or painted on any park property, including any park street and the perimeters of any park, there shall be a rebuttable presumption that any person whose name appears on such sign, and whose interest such sign reasonably appears to be intended to further, has caused such sign to be posted or painted.