Welcome to OCDO. I hope that race doesn't become an issue for you when you OC, but we all know that sometimes it does, so you need to prepare yourself.
Grapeshot is dead-on with the Kenn Blanchard recommendation. Ken is a real "stand-up" guy, and has a TON of experience with firearms and the law. If you go searching the web for him, be sure to spell his name correctly though:
Kenn Blanchard
if you spell "Ken" with one "n", you'll get info on an old white guy who does corporate motivation seminars...
Kenn has a Podcast that isn't specifically OC (he lives in MD, near the DC border, and even though he has a MC permit, and is an ex-Federal Agent and a minister now, OC isn't really an option for him...) But his show is funny, educational, and he addresses the problems that "people of color" have when it comes to exercising their gun rights.
http://urbanshooterpodcast.com/
Kenn has also written a small book addressing this issue, entitled "Black Man With A Gun," that addresses many of the issues you may face with family, friends, and your community as an African American exercising your Second Amendment rights:
http://www.amazon.com/Black-Man-Gun-Kenneth-Blanchard/dp/156167656X
There are also several members of this forum from NC that are "African American", so if you ask around, you might be able to get some pointers from them. I'm a white, middle-aged dude, so my personal experiences are only marginally applicable to what YOU may encounter.
just remember, politeness is ALWAYS your friend. Be firm, but polite. Mouthing off or being rude or preachy to a cop will get you NOWHERE. Having a copy of the NC OC brochure in your pocket might be a good idea. And carrying a voice or video recorder is pretty much REQUIRED if the LEO's in your area are know for harassing OCers...
You need to research and study the history of gun laws. This topic is PARTICULARLY important for you, because EVERY gun law on the books (not just in NC, but in EVERY state and on the federal level) was put in place due to racist attitudes. There is a FANTASTIC essay written by a scholar named Clayton E. Cramer entitled "The Racist Roots of Gun Control". It is a CRITICAL piece of reading for anyone interested in gun rights, civil rights, and racial issues in America:
http://www.constitution.org/cmt/cramer/racist_roots.htm
Please stay in touch, and let us know how things go for you. This forum is VERY supportive, and there are some folks on here who know the law VERY well and can give you pointers and advice that may help keep you out of trouble.
The gun laws in NC are a little weird, and there are all sorts of little oddball exceptions where you CAN'T carry that just don't make any sense. So study the laws and ASK LOTS OF QUESTIONS on this forum.
The biggest advice I can give to you is DO NOT ask a cop for advice on gun laws. Most of them don't know the laws very well, and they tend to just make stuff up when they don't know, rather than say they don't know. I've actually had cops tell me things were illegal when the law says they are PERFECTLY legal, and I've also had cops tell me things were OK when they were plainly illegal under NC law. Cops can't be held legally responsible for giving bad or incorrect advice, but YOU can be held liable for know knowing the law if you break it.
Knowing the law is YOUR responsibility. Ask lots of questions. If we don't know the answer, we'll help you find it.
Welcome, and good luck!