Laws like this creates a dilemna and dangerous situation for lawful conceal carriers.  When I have to enter one of these places, I can either hide my piece, risking it being stolen from the car and myself being at greater risk during this period, or carry anyway and risk the legal consequences. Remembering that criminals do not obey laws (obviously), this law only harms lawful persons, and makes anti-gun people feel "safe".  As most recent mass attacks have been in gun-free zones, I fear the consequences of creating more such places.