(10) place clearly marked with a sign prohibiting the carrying of a concealable weapon on the premises pursuant to Sections
23-31-220 and
23-31-235. Except that a property owner or an agent acting on his behalf, by express written consent, may allow individuals of his choosing to enter onto property regardless of any posted sign to the contrary. A person who violates a provision of this item, whether the violation is wilful or not, only may be charged with a violation of Section
16-11-620 and must not be charged with or penalized for a violation of this subsection.
Except as provided for in item (10), a person who wilfully violates a provision of this subsection is guilty of a misdemeanor and, upon conviction, must be fined not less than one thousand dollars or imprisoned not more than one year, or both, at the discretion of the court and have his permit revoked for five years.
Nothing contained in this subsection may be construed to alter or affect the provisions of Sections 10-11-320, 16-23-420, 16-23-430, 16-23-465, 44-23-1080, 44-52-165, 50-9-830, and 51-3-145.