Used in many states now as form of "Posted" ......" No Trespassing ".
When first incorporated in '97, a "Posted" sign was required with the paint markings of vert line or lines at least 1 inch wide by 8 inches long. Now just purple paint.
Relative to that by markings of purple paint accompanied by "Castle Law" it is sufficient to shoot.
Look up Purple Paint Laws.....think NC is one of them.
I gotcha...yes, NC is. I thought it was in some way related to the hurricane.
Very uncommon to see in this area.