339.13  LOADED VEHICLES RESTRICTED WHEN PAVEMENT UNSAFE.
   (a)   No owner or operator of a loaded vehicle shall pass over certain streets in the City the pavement of which has been designated by the Chief of Police as unsafe for loaded vehicles, unless a permit has been first obtained from the Chief of Police.
   (b)    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.