Most of you chiming in don't know TN law.
In Tennessee, police are NOT on duty 24/7. They work their shifts, and they go. If a LEO goes onto a college campus carrying a firearm NOT while acting as LEO, they are committing a felony. The federal cited does NOT over-rule this state law, also this is NOT a new campus policy, it is actually bringing the campus into compliance with the law.
It is worth noting that when the TN legislature crafting our laws, the made every effort to NOT grant LEOs any special exception. It is in fact illegal for a policeman who is working his shift to take his lunch break in a restaurant that serves alcohol, because firearms are prohibited in places that serve beer/alcohol for on site consumption. The only legally valid excuse is that the officer entered as LEO because of his job. Personal lunch break during his shift is NOT a valid excuse.
When the campus cops say they rely on the other cops, what they really mean is they don't want to tell their friends no.
I for one am glad to see some special treatment end. Once I can carry on school grounds, then I will happy to let government men do the same. I find the convenience excuse disgusting. It would be convenient for me as well, but they don't care.