It shall be unlawful for any person to wilfully injure or destroy, or in any manner hurt, damage, tamper with or impair the facilities of a vocational board, or any part thereof. Any person violating the provisions of this section shall be deemed guilty of a misdemeanor and upon conviction shall be fined not less than ten dollars nor more than one hundred dollars or imprisoned for not more than thirty days at the discretion of the court, and shall be further liable to pay the cost of all damages.