Most attorneys are only truly familiar with the law in the state in which they practice. You may want to consider calling the SC version of DMV to inquire as to the status of your license, without going into any detail about what happened in NC. Best of luck.
Interesting situation. You can always look for an attorney here on AVVO in the state you have questions by clicking on "Find a Lawyer" at the top of this page. Good luck.
Sign up to receive a 3-part series of useful information and legal advice about DUIs.