I took the liberty to copy/paste this right from the "NC Gun Laws" pamphlet out by our States Atty, Roy Cooper:
By common law in North Carolina, it is unlawful for a person to arm himself/herself with any unusual and dangerous weapon, for the purpose of terrifying others, and go about on public highways in a manner to cause terror to others. The N.C. Supreme Court states that any gun is an unusual and dangerous weapon for purposes of this offense. Therefore, persons are cautioned as to the areas they frequent with firearms.
According to my personal Atty, "Intent to terrify", in regards to being armed,would need to be proved. Now, obviously, no one wants the hassle of an arrest or expense of legal fees, so be careful and be smart, however you carry. This is just my atty's opinion, your's may have a different point of view. I feel confident that if some anti-gun left-wing wacko happens to see my holstered XD .45, that does not meet the legal threshold for being "terrified"
"That Other's May Live"