@druid Hey, it's only in the last ~2 years that press credentials were issued by the a mayor-controlled office and not the NYPD itself (https://www.nyc.gov/site/mome/press-card/press-card-faq.page). But the NYPD can still exclude people, per the first screenshot.
Of course, it could also have been the University, which threatened disciplinary action against any students who got near Hamilton Hall or the encampment (second screenshot).