Effective July 2, 2009, citizens possessing a permit to carry in South Carolina are allowed to maintain a firearm in their cars.
Specifically, the bill states that guns on campus are permitted by those “authorized to carry a concealed weapon … when the weapon remains inside an attended or locked motor vehicle and is secured in a closed glove compartment, closed console, closed trunk, or in a closed container secured by an integral fastener and transported in the luggage compartment of the vehicle.”
Bill’s text here.