[dirtboy]

They could fire you for insubordination.

And how is that different from posting a policy regarding not allowing firearms on company property, and firing you if you violate that rule? Speech is protected by the 1st Amendment. The right to bear arms is protected by the second. But neither gives you the right to exercise them on someone else's private property against the property owner's will.

[jimthewiz]

You are ignoring the fact that in order to determine that there is a firearm in the vehicle requires a search, and barring permission or a warrant, a search is actually prohibited by the Constitution.

I have not been able to find anywhere in the Constitution or it's amendments that specifies property rights. Perhaps you can help me by listing the Articles regarding property rights. Thanks.