I hope someone corrects me if I'm wrong about this, but as far as I know, the Public doesn't have an in-person rush policy. Only the TodayTix rush, the full-price cancellation line, and the student tickets, which can be bought in advance for shows that aren't sold out. I know they have experimented with in-person rush in the past, but they got rid of it. And last I checked, they haven't reinstated it.