As long as you are not doing massage at the bar then you do not have a problem.
Being a waitress is not a problem, if you are working at a sexually oriented business, like a strip club, then you might have a problem.

Certainly. The only problem you might encounter in doing this is practicing message therapy while actually working as a cocktail waitress.
In other words, I would imagine a cocktail waitress would get a lot of opportunities to provide a few “deep muscle” massages while on the job… If you get my drift?
That would probably be illegal.

Only if as a waitress
.
She becomes a taster of the products she serves to the customer
.
Not many people want to be near ***** with a person for a massage
that can not see the eye chart on the wall as it was meant to be seen
.
Because there is no telling what that person might grab hold of to give a work out with their fingers on
.
A little humor here of course
All in fun
You are not in jeopardy of loosing your license to be a masseur

I’m not in NC, but I would contact whatever agency licensed you as a M.T. I wouldn’t see any reason why having a second job should have bearing on your MT license.