The problem of an exposed concealed weapon was resolved several years ago. This law has nothing to do with that.
CORRECTION: The problem of an inadvertently or accidentally exposed (or "printed-thru") concealed weapon was resolved several years ago.
Since I prefer to hang my suit jacket or sport coat in the back of my vehicle when I drive, I'm technically at risk when I step to the rear of my vehicle to recover my jacket when I reach my destination. That now ends January 1.