Nope, to be honest I've never heard of that before. Now I run a self storage facility and live here as well. Many of my tenants also carry daily both open and concealed. I wouldn't think of putting something like that in the rental agreement though we do restrict some things from being stored. Now personally I would never leave a gun in my glove box locked over night in a parking lot regardless. So to be honest I sure can't help much with this.