Oddly enough, that is often the law the police cite, or that other public buildings used to cite. The only problem is that that law specifies concealed carry.
There are only 2 general location laws in Nevada, no firearms in the legislative building, or where the legislature is conducting business. Also no firearms at schools or child care facilities.(Public Universities/Colleges you can technically get permission to CC, but good luck in getting the the sign off on that)
Other than that all the laws are related to concealed carry only. Technically you can OC into the non-secure areas of an airport here. Although with the fed/local jurisdictional cross over that happens at airports, that seems like a really really good way to wind up spending money on a lawyer lol.