Shocking surveillance footage shows a woman being viciously assaulted by a homeless man in a Queens subway station after ignoring him on a train, police said Monday. The attack happened just after 5 a.m. Sept. 20 as the 33-year-old victim tried to exit the northbound A train at the Howard Beach stop without engaging with the vagrant, cops said. The suspect, 41-year-old Waheed Foster — who has two prior busts for attacking women — then chased the woman off the train, attacking her near the subway entrance, cops said. The sickening footage shows Foster throwing the woman into the wall...