Welcome Barry.
Here's a link to the NC General Statutes. I checked briefly, but I didn't find the sections on prohibited lights, color schemes, etc. and I'm otd for a few. I'll look again for you when I get back, if you don't find something first.
Please post up some pics of your car when you can, too (don't see many NC cars).
http://www.ncleg.net/gascripts/Statutes/StatutesTOC.pl