I know several universities are allowing students to stay, but asking those who can leave to go home. (Even just half the students leaving campus would be a highly effective form of social distancing and could massively reduce spread. The places that shut down and just asked everyone to leave... that's not so great!
I will say, as someone who teaches at a university, the transition from on-the-ground to online is a TON of work, and suddenly having everyone online will likely overload the various platforms we use for teaching. Be patient with any instructors, admin, etc. It's easy to say "just teach online!" but in reality online teaching is hard, the platforms aren't ready for this many people, and there's been a ton of work behind the scenes to keep education going. Not every class can be taught online - my students get the most out of class discussion and it's really hard to mimic that conversation online - large group video chats are a poor substitute, as are forum posts. We'll work with what we've got but it's not as easy as people think to teach online!