Prohibited Signs. The following sign types shall be prohibited: signs constituting a pedestrian or vehicular traffic hazard; unlawful advertising; off-premises signs; mobile billboards; vehicle signs attached to motor vehicles that are parked on or adjacent to property for more than 24 consecutive hours, the principal purpose of which is to attract attention to a product sold, service offered, or business located on the property; pole signs; light bulb strings and exposed tubing; banners, pennants, flags, and balloons used as permanent signs; signs in proximity to utility lines; signs on public property or public rights-of-way; can (cabinet) style wall signs; painted wall signs; flat, unframed metal/wood/acrylic "panel" signs; roof-mounted signs; vinyl awnings; obscene or offensive signs containing statements, words, or pictures of an obscene or indecent character which appeal to the prurient interest in sex, or which are patently offensive and do not have serious literary, artistic, political, or scientific value; signs advertising home occupations; signs erected in a manner that a portion of their surface or supports will interfere with the free use of a fire escape, exit or standpipe, or obstruct a required ventilator, door, stairway, or window above the first floor, or create other hazards; signs not in compliance with the provisions of this chapter. All off-premises signs of any type whatsoever shall be prohibited.