Members of the far-right Proud Boys group marched through Rockville, LI, over the weekend, storming into stores and disrupting shoppers, according to video and reports. About 20 members of the organization — classified as a hate group by the Southern Poverty Law Center and Anti-Defamation League — took over a street Saturday while clad in black, their faces covered by bandanas, and hoisting “Don’t Tread on Me” flags as they blared rap music from a truck, video shows.