Things have gotten so bad in New York City that drug dealers are brazenly selling what appears to be cocaine — sometimes neatly assembled on sidewalk tables — on Broadway in trendy NoMad and farther north in Times Square. Some of the drug-slingers openly solicit, saying, “Weed, coke. Weed, coke” as pedestrians walk by, a disgusted local restaurateur said. The Post observed two different buyers approach dealers on the corner of West 27th Street and Broadway earlier this month and hand over cash in exchange for plastic baggies containing a mysterious white substance.