What happens if your concealed weapon becomes un concealed. Guess what? you get arrested, you get your CCW revoked and possibly your firearm taken away, never to be seen again.
Is it worth the risk when there are other methods to insure that no-one interfers with your God given right to vote? Remember, everyone is looking at gun owners to screw up. The Upper ranks of law enforcment is just looking to make a example out of a CCW carrier.
It won't.