§ 152.10 SAFETY, VISIBILITY AND THE LIKE.
   (A)   Every sign, including, but not limited to those signs for which no permits or permit fees are required, shall be maintained in a safe, presentable and good structural material condition at all times, including the replacement of defective parts, painting, repainting, cleaning and maintaining the immediate surrounding premises in a clean, sanitary and inoffensive condition free of obnoxious substances, rubbish and weeds. Signs in good repair are not corroded, do not have deteriorated paint of finished surfaces, and do not have loose members, broken parts or similar deterioration.
   (B)   No person shall maintain or permit to be maintained on any premises owned or controlled by him or her any sign which is in a dangerous or defective condition. Any sign shall be removed or repaired by the owner of the sign or the owner of the premises.
   (C)   (1)   No sign shall, by reason of its location, color, illumination or intensity, obstruct vision of drivers or pedestrians or obscure visibility of any traffic control devise, sign or signal. Illumination must be effectively shielded so as not to impair vision of any operator or a motor vehicle. Illumination with flashing lights is prohibited.
      (2)   Any sign which imitates or resembles an official traffic sign or signal or which bears the words “Stop,” “Go Slow,” “Caution,” “Danger,” “Warning” or similar words is prohibited.
   (D)   (1)   Any sign which bears or contains statements, words or pictures of an obscene, pornographic, immoral character shall be considered a nuisance and is prohibited.
      (2)   Any sign which emits audible sound, odor or visible matter shall be considered a public nuisance and is prohibited.
(`86 Code, § 9.82)