Can I grab food and eat outside if I don't have a reservation? Yes. To grab food you will need to show proof of vaccination at our cafeteria-style restaurants. Related articles What if an employee tests positive for COVID-19? What if I don't see a reservation available? Will I need a proof of vaccination for my wedding, conference or event? Why is Vail Resorts requiring proof of vaccination to enter or dine at indoor, on-mountain quick-service restaurants this season?