That little dude sitting on your shoulder whispering things to you is known as the "Good Idea Fairy". In the UK, he is known as "The Emperor Mong". In this case, when the police are smashing your face into the sidewalk, breaking your gun into a hundred pieces and stomping on your gonads, this little b@stard will have vanished "poof" in a cloud of pink mist, leaving you to explain all by your lonesome.
When I am forced to travel someplace on the other side of Illinois, I generally go around it through Iowa and Missouri. The laws of that state and the attitudes of most people in the North half of the state are so ludicrous it makes you think you are in a foreign country... the Peoples Republic of Chicagoland perhaps.
We have "open carry" in Wisconsin and I tried it briefly... but I got much more attention of the negative kind than I care to deal with, so I got a concealed carry permit and don't carry openly in heavily populated regions any longer. When I travel out of state, I generally carry a muzzleloader in my trunk just so I have SOMETHING to shoot if I have to. These days you are much more likely to get pulled over and have your car searched because the officer smelled marijuana or saw you with a gun than you are to actually need a gun while you are driving an automobile. The automobile is generally much better at getting you away from a bad situation than the gun is.
Most cops are relatively decent and honest individuals. Some are simply "Barney Bad@sses" who were bullies in high school and liked it so much that they became cops so they can continue to push people around legally. When dealing with police, you have to assume that at least one of them is as likely as not to be the latter version. That sort might do all kinds of nasty things to someone carrying a "gun" in public... who caused the 911 call which interrupted Officer Bad@ss' lunch at the free doughnut shop where he was attempting to coerce a waitress into doing something to avoid getting arrested for something else.
I've dealt with both types.