Prohibited. It shall be unlawful, and is hereby declared a nuisance,
to place graffiti, or permit graffiti to remain on any public or private
curb stone, flagstone, brick, sidewalk or any portion of any part
of any sidewalk or street, or upon any tree, lamp post, telephone
pole, utility box, utility pole, stanchion, postal mail receptacle,
sign, hydrant, fence, door, wall, window, garage or enclosure, vehicle,
bridge, pier, or upon any other public or private structure or building.