Outcome of the usage of a ccw in a restricted zone?

Has a scenario ever occurred somewhere where it was in violation of a federal or state law (e.g. in a post office, school, law building etc...)? I want to know what the outcome is assuming all other laws were followed and the lethal force was justified.I'd just rather not leave my gun in the car anytime I can help it, even if I have no intention of using it and I go to the post office pretty frequently. via /r/CCW https://ift.tt/2OlYpUc