The rooms are designed to give students a place to tune into their remotely instructed classes while still receiving a classroom experience.
Penn State and its police department didn't immediately respond to a request for comment on the reported gatherings.
Warren said the conference's leadership was "overwhelmingly in support" of postponing fall sports and stated the topic won't be revisited.
"Furloughs at a minimum, are in our immediate future."
Moving forward, Penn State Athletics will report unaggregated testing figures on a weekly basis.
"While I appreciate the complexities and difficulties of this decision for the leaders of our conference, I am extremely frustrated because we still have very few answers to communicate to our young men and their families."