Every driver, except persons employed by the United States Postal Service while performing duties for that Federal agency which require the operator to service postal boxes from their vehicles, or which require frequent entry into and exit from their vehicles, and front seat passengers of a passenger car manufactured after January 1, 1968, operated on a street or highway in the City, and persons less than eighteen (18) years of age operating or riding in a truck, as defined in Subsection (A) of this Section, on a street or highway of this City shall wear a properly adjusted and fastened safety belt that meets Federal National Highway, Transportation and Safety Act requirements; except that, a child less than four (4) years of age shall be protected as required in Section
390.280 of this Chapter. No person shall be stopped, inspected, or detained solely to determine compliance with this Subsection. The provisions of this Section shall not be applicable to persons who have a medical reason for failing to have a seat belt fastened about their body, nor shall the provisions of this Section be applicable to persons while operating or riding a motor vehicle being used in agricultural work-related activities. Non-compliance with this Subsection shall not constitute probable cause for violation of any other provision of law. Each person found guilty of violating the provisions of this Section is guilty of an infraction for which a fine not to exceed ten dollars ($10.00) may be imposed. All other provisions of law and court rules to the contrary notwithstanding, no court costs may be imposed on any person due to a violation of this Section.