imported post
Can you see it from outside the vehicle? Like if you were an LEO looking in the window? It has to be plainly visible, so in this case, probably not legal without a CWP. If it is "hidden from common observation" then it is concealed. If the officer does not see it then spots it later on, he probably has grounds to say it was concealed, since it was not in "common observation". Just because it can be "seen" doesn't necessarily make it unconcealed. Play it safe, make it obvious (unless you have a CWP, in which case you're covered either way. And remember if you are stopped to keep your hands on the wheel and do not take them off until the officer asks for your licence+registration. You could even be ordered out of the vehicle, which is not unlawful because it is for the officer's (and your) safety.
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edit to add:
Perhaps you could post a picture of this map pocket so we can tell exactally what you're talking about.