Legendary Zuni Cafe gets rid of tips, joining a wage-equity movement in Bay Area Legendary Zuni Cafe gets rid of tips, joining a wage-equity movement in Bay Area But not all staffers think the new model, where diners get a service charge, is in their best interest FacebookTwitterEmail Legendary S.F. restaurant Zuni Cafe will add 20% service charge to bills when it resumes indoor dining in a few weeks.Kimberley Hasselbrink/Special to The Chronicle 2020 When Zuni Cafe reopens for indoor dining in a few weeks, it’ll shift from a traditional tipping model to adding a 20% service charge to diners’ bills — a way to boost wages for the restaurant’s lowest wage workers. The San Francisco institution will join a long list of Bay Area restaurants that have switched to a service charge in the past several years, though some businesses have struggled to maintain a tipless model because of higher taxes and difficulty in retaining staff.