Wow, I'm glad I'm a cop. Even though I have a CHL (for buying guns), I can, by law, carry in all states. Two years ago my family and I were almost victims of an armed robbery in a NP but being observant of my surroundins and quicker on the draw I was able to squash any potential violence before it started. Did I get hassled? Kinda but nomore than what I expected. But as it was explained to me earlier this year, if the state the NP is in has recoprocity with the state your CHL is issued then you're good. If not, oh well.