Why can't you just take a summer class somewhere?  I'm in NC also.  Have you tried looking into East Carolina's online courses?  I know a guy who got his masters degree by taking all online courses there.  He had to study and do the homework on his own and then go to the campus to take exams.  Surely you can find a summer class somewhere to get your 1 credit hour. 

I've never heard of a 1 credit hour course for accounting.  Most likely, you will have to take a 3 credit hour course.  I had a similar problem and the course I chose actually ended up helping me for the AUD exam and my current job.  When something like this happens, it's usually a blessing.   Maybe it can go toward an MBA later.  It can be annoying, but try to think of this as an opportunity to learn something new and go from there.