A person may not sell or offer for sale a contraceptive or a contraceptive device, whether or not advertised as a prophylactic, by means of a vending machine or other automatic device at a kindergarten, nursery school, or elementary or secondary school. A person who violates this section is guilty of a misdemeanor and on conviction is subject to a fine not exceeding $1,000 for each violation. Each vending machine or other automatic device in a school is a separate violation.