339.12 OBLIGATION TO USE STATE OR FEDERAL ROUTES; SIGNS.
   (a)    It shall be the duty of the drivers of all vehicles exceeding weight limits established in this chapter and entering the City upon a street other than a State or Federal route, to immediately proceed, by the shortest way possible, to the nearest State or Federal route leading in the direction in which such vehicle is proceeding.
      
   (b)    All streets and highways leading into the City shall be properly posted warning operators of vehicles exceeding such weights that they must follow State and Federal routes, temporary or permanent. (Ord. 1955-87. Passed 12-20-55.)
   (c)   Whoever violates any provision of this section is guilty of a minor misdemeanor on a first offense; on a second offense within one year after the first offense, the person is guilty of a misdemeanor of the fourth degree; on each subsequent offense within one year after the first offense, the person is guilty of a misdemeanor of the third degree.