There’s a reason North Carolina is not on the list. The Wikipedia version of the story: http://en.wikipedia.org/wiki/North_Carolina_State_Defense_Militia
It seems like one overreaction led to another.
As a former State Guard member, I can attest to a little friction among Fed forces, National Guard and State Guard. Some people seem to always want to assert their superiority, real or imagined. However, in most cases, people were very friendly and accepting. I participated in many joint exercises and didn't encounter much friction. Sometimes, people did push on me a little harder, but I figured they were just testing me. I didn't take it personally.