Getting back on topic --- The weakness in the argument is that nobody has declared the right to carry concealed protected by the 2A and I'm sure the state will point this out. I'm not versed enough in Equal Protection law to know if the classification of citizen vs. legal resident aliens is sufficient where a constitutional right is not involved (yes, I'm assuming the 2A does not protect concealed carry if open carry is legal).
Jim's Rules of Carry: 1. Any gun is better than no gun. 2. A gun that is reliable is better than a gun that is not. 3. A hole in the right place is better than a hole in the wrong place. 4. A bigger hole is a better hole.