Is there really a need for protests/demonstrations on a college campus between 10 PM and 8 AM?
I think the events on college campuses around the country over the past couple of years prove that there is a legitimate safety concern involved in such demonstrations. And many or even most college campuses in the state of Texas include housing for students, who have a reasonable expectation for protection and safety, in and around their places of residence.
Demonstrations would still be allowed during the day, and they're also allowed at City Hall and the State Capitol and pretty much every other public space.