if you have what support soid in writing then ask student legal (most universities give you free lawyer access, use it) but in general specific advice like this will in court override what the eula says. The person who said you could should of course be fired but that isn't your problem.
in the us fcc rules say these are unlicensed bands and they cannot make those rules about any radio. However the eula seems to be about wifi use but connecting their network to wifi and that difference is in their favor. If you get your own network connection (how?) You can bring your own wifi but don't connect theirs.