1. Limit access to university property and facilities by any person or persons;
2. Impose a curfew;
3. Restrict the right of assembly by groups of five or more persons;
4. Provide reasonable measures to enforce limitations of access, a curfew and restrictions on the rights of assembly imposed pursuant to this section.
Notice of action taken pursuant to Division 1 of this section shall be posted or published in such manner as is reasonably calculated to reach all persons affected.