Unfortunately, although Matt could tell more than he needed to know about the newcomer -- what brand of shampoo she used, what she had for lunch -- he could not tell that she was with SHIELD. There were just some things in life that went to proving how his lack of eye sight worked against him at times, no matter how heightened his other senses were.
Matt didn't recognize the woman but he knew that she was trained. The way she moved and handled the battle staves spoke of years of training and hinted at some sort of militia background. A fellow do-gooder? Perhaps.
"New York does!" he replied, and jumped onto a cab, gaining momentum and using his billy club to swing himself upwards. He caught the nearest giant in the face before he could freeze the street before him.