[KLRANGL]

Has there been any legal study or court case regarding "duty to inform" laws and their infringement on your right to not self incriminate?

Was visiting a friend who lived literally right next to Duke University in North Carolina. NC law makes it a misdemeanor to even have an unloaded gun in your car on university property (felony if you attend or work for the school). I really wanted to CC while there, since some of it isn't the best area in the world, but I was too afraid of taking a wrong turn in an area that I did not know and end up on campus property. So I ended up not carrying (good thing, since I ended up on campus property while I was there by accident).
Many of us can admit (to ourselves) to accidentally ending up in a place that forbids carry. If you find yourself in that situation, and upon leaving the area you get approached or pulled over by a police officer, in a duty to inform state are you not then legally required to self incriminate by stating that you are carrying while in a location that does not permit carry? We all have the responsibility to follow the law to the letter, but people are fallible and accidents can happen.
Thoughts?