(16) Being the holder of a license to sell alcoholic liquor, fails to post in a conspicuous place a sign which clearly reads, "According to the Surgeon General, women should not drink alcoholic beverages during pregnancy because of the risk of birth defects,"
shall, in addition to the payment of costs, be fined not more than $100, and, on failure to pay such fine and costs, shall be imprisoned for 30 days. Justices of the peace shall have original jurisdiction to hear, try, and finally determine alleged violations of this section.