Granted, for those that have cared to look at those signs of college campus, most of you know that they are either out there or they're quoting laws that are not even related to the nature of the signs. Therefore, there are some folks that are actively carrying on campus. I say, "Carry On"!
Here's the exact text of the door stickers at U of L. These are, as best as I can tell, posted on every possible entrance to every building that is part of the University system. As you can see, the only law cited on their posted signs is the concealed carry law, and only to say that it does not apply.