All farm machinery, including animal drawnanimal-drawn vehicles, golf carts, and highway construction and maintenance vehicles which that are designed for operation at a rate of speed of twenty-five miles per hour or less or such vehicles when any vehicles operated at speeds of twenty-five miles per hour or less, when operated on a public highway, shall must display a slow-moving vehicle emblem. Said The slow-moving 23 vehicle emblem shall must be mounted on the rear of a slow-moving vehicle in such athe position and condition as to be clearly visible. A violation of this section is a petty offense. 2