In Georgia the company cannot take action against you for having a gun in your car unless the parking lot is " secured " . I would assume by secured that would mean fenced with access control gate or manned guard house.I wish Georgia could pass a law like they did in Tennessee, where you can store your firearm in a vehicle while on company property and the company/employer has no say in the matter. A friend was taking night classes several years ago and told me about the big 'no firearms on campus' signs at the parking lot entrances. He was careful to keep his handgun out of sight and his mouth zipped about it while in the classroom. He said he would never give anyone permission to search his vehicle and hoped it never came down to that ... or a shooting incident at the school.
As far as college campus goes, weapons license holders can have a weapon in the car as long as they are not enrolled as students .