Yeah, I tend to agree, just can't find a reference for Raleigh...
[edit]... got it!
Sec. 13-2010. FIREARMS; DISCHARGE WITHIN CITY.
View attachment 148759
(a)
It
shall be unlawful for any
person to shoot or discharge within the corporate limits of the
City, any air rifle, gun or pistol, or any spring gun, pistol, or other similar device which impels with force any shot or pellet of any kind.
So, I guess you get to debate with the LEO who arrives as to whether that empty shell casing had "shot or pellet of any kind" in it before it was emptied... while handing him/her your shotgun...
http://library.municode.com/index.aspx?clientID=10312&stateID=33&statename=North Carolina