Alterra and Vail Mountain Resorts shut down all ski slopes effective today. I just had friends here for a long weekend and they just made getting their skiing in. There must have been a bunch of people who traveled to the ski slopes only to see them shut down. I would think the risk of transmission is low when skiing.
I also see stores are reducing their hours being open. You can see why people may think they have to hoard items, worrying about future shut downs.