Any dealer who sells any moped at retail shall affix to any such moped, or verify that there is affixed thereto a permanent decal or sticker which states (i) that the operation of mopeds on highways and public vehicular areas by persons under the age of sixteen is prohibited by Virginia law, (ii) the maximum engine displacement or wattage of the moped, and (iii) the maximum speed at which the moped may be ridden. Any dealer who sells any such moped which does not have affixed thereto such a permanent decal or sticker shall be guilty of a Class 1 misdemeanor.