The rollout of the COVID-19 vaccine mandate across New York City restaurants Tuesday has sparked an instant backlash, with business owners branding the move 'segregation' and confused customers finding themselves turned away from eateries. Mayor Bill de Blasio's controversial 'Key to NYC' scheme officially kicked off August 17, marking the US's strictest rule to date which separates the vaccinated and the unvaccinated in day-to-day life. And it is restaurant servers and bar staff who must be the public enforcers of the mayor's new mandate. -snip- Mary Josephine Generoso, manager of pastry shop and diner Pasticceria Rocco in Bay Ridge, Brooklyn,...