Honestly, I think we are better off letting this one stay common law. as soon as a bill entered the legislature, I fear it would quickly be so filled with exceptions and limitations (like our concealed carry permits) that we would actually be worse off than we are now.
As it stands, most sheeple have no idea this is the current state of law in North Carolina and therefore no one is raising any cain about it. My fear would be making an issue of something and coming out worse off than we are now.
While the "going armed to the terror of the public" statute, is a potential probelm (primarliy with misinformed police), I think challenging it, (either in court or through efforts to education polcie departments, etc.) is the better course of action.
Just my $.02