This type of labor action has become a familiar story in a city that takes its coffee and takeout seriously. For example, the Teamsters accused FreshDirect, the grocery delivery company, of firing workers just before a union vote last fall, an assertion the company denied. The unionization effort failed.  In October, the National Labor Relations Board said that two Saigon Grill restaurants, among the most highly rated Asian restaurants in New York, had illegally retaliated against workers who banded together. The owner has denied wrongdoing.  The home of the caramel macchiato, Starbucks, has drawn some of the most consistent criticism, often from employees associated with the Industrial Workers of the World. Last April, the National Labor Relations Board accused Starbucks of breaking the law 30 times in fighting union activity at four Manhattan shops. The company has attributed the accusations to a handful of disgruntled workers.  Outside the shop Monday, Daniel Gross, 28, a former Starbucks employee, said the group was there to advance its union organizing effort and to protest Starbucks’s refusal to pay workers overtime for working on Martin Luther King’s Birthday.  Inside the shop a Starbucks company spokesman, David Vermillion, distributed a written statement saying the company pays overtime for working on several other holidays, like Memorial Day and Thanksgiving.  After about half an hour outside the Starbucks, the crowd walked east to hold a second demonstration outside another target of the I.W.W., Wild Edibles, a seafood store on Third Avenue.  The protesters lined Third Avenue in front of the seafood shop, chanting and holding placards. A man delivering a laundered supply of white uniforms for Wild Edibles approached. Rather than pass through what he was told was a picket line, he wished them well, went back across the street and waited in his truck.  Among those protesting was Cesar Barturen, 47, who said he had worked for 10 years as a driver for Wild Edibles, delivering seafood from a Long Island City warehouse until September, when he and several other workers were fired after trying to organize a union drive.  “The owner, he told me he didn’t want the union,” Mr. Barturen said.  Thomas J. Bianco, a lawyer for the shop, did not respond to a request for comment.  A version of this article appears in print on , on Page B6 of the New York edition with the headline: Icy Day Finds Old Union Outside Modern City Shops. Order Reprints| Today's Paper|Subscribe
At a rally protesting Starbucks’ labor policies, evidence of   the labor disputes that have become familiar at the retail outlets that serve upscale customers in New York.