Seriously? You can't expect an immigration agent or a NYC cop to fall for that simplistic excuse. A handgun in a holster on your hip ain't gonna fly!
The thread is about concealed carry on a 4000 mile interstate and intra country trip.
Regarding Panacea: One cannot just say: "I carry, and I will wherever I go on a loop trip." It will be difficult to continue on the loop from in the slammer. Not saying you will get caught. BUT if you do..... it's all on you for not abiding by the local laws.
The real issue is standardized federal qualifications that congeal all the states differing, confusing, downright nasty rules for concealed carry. Not that you can't have a gun (so far) but concealed carry should be the same wherever you are or live or visit. So far that ain't so. IIRC only 28 states have reciprocity. The rest don't.
Heres a
link to check where you are legal to carry depending upon your state of residence.