Frank, do you know something we do not? As far as I understand it, if you are carrying a handgun, you are breaking the law. That is black and white. Specific exemptions are set forth for citizens to carry a handgun, LTCH for instance. It is not illegal/unconstitutional for an officer to ask for a LTCH when seeing a handgun. Failure to prove that you are licensed CAN result in an arrest, in which burden of proof is on the licensed, not the state.
You got it.