(a) Except by the written permit of the authority responsible for the closing, a person shall not drive any vehicle over any highway across which there is a barrier or a sign indicating that the highway is closed to public travel.
(b) An authority responsible for closing a highway to public travel may erect a sign, which shall be visible to highway users and proximate to the barrier or sign indicating that the highway is closed to public travel, indicating that violators are subject to penalties and civil damages.
(c) [Repealed.]