I have been hearing a lot of discussion of gun free zones and how the law needs to be repealed. Unless I am mistaken that has already been done. I am just a blue collar guy that likes the law, maybe someone with more knowlegde can chime in.
Also if they did shoot down the law and leave the signs up wouldn't most people believe it was still in force? It's all about perception.
See the link below for info on the court case.
United States v. Lopez
In 96 it was reenacted. They changed 17 words I believe. No one has been charged with violating the law since, for obvious reasons.
I believe Gun Free Zones never included colleges/universities.