It wouldn't be pretty. The media would have a field day. The gov't would enact another AWB. All the soccer moms that are in the mall would sure the gun makers because the noise hurt thier ears.You're in a shopping mall (soft target) with your family...Billy Achmed decides to do one of those mass shootings with a couple of his buddies, or maybe even by himself (you draw up the numbers)...
Seriously. You would hope that in the mall, as in the "Lubys" the CHLers would be aware of thier surrounding and act accordingly. Identify the threats. Is the guy in the hawiian shirt shooting at the goober with the AK (because Billy Achmed wouldn't use anything else) or unarmed soccer moms and thier little darlings?