Sen. Kirsten Gillibrand strolled into an upstate eatery maskless, in violation of a statewide mandate, according to video footage posted by the irate restaurateur. John La Posta, manager of the Innovo Kitchen in Latham, said Gillibrand blew past a large sign reading “masks required to enter,” and that his own staff didn’t even have time to ask her to put one on as she quickly brushed past them toward the tables.