On 7/1/2016, a new law takes effect in Tennessee. One that will make businesses liable for their anti-gun policies. Tennessee Senate bill 1736.
Starting 7/1/16, if a CCW license holder enters a place of business (or while in their parking lot traveling to/from said business) that by their own policy (meaning the business is not required by law to ban firearms, such as schools/Government buildings, etc.) bans firearms and is robbed/wounded/killed by a criminal, the CCW holder has the right to sue the f'in crap out of that place of business.
What this means is that if a business that doesn't have to restrict a citizens ability to defend themselves, that business will be held civilly liable for any injury incurred by another unlawful act sustained by the CCW holder or those with them.
I doubt this will not cause any "NO WEAPONS" signs to come down until after the first couple of multi-million dollar lawsuits.