Does Piper convince Moose to assist her with the laundry project? What happened?

When Piper comes up with a scheme to have kids at school pay to have their clothing washed in the prison laundry for a nickel each, she wants Moose's help, but he repeatedly refuses. Afraid of compromising his father's job after the warnings the warden gave him, Moose refuses. Piper, however, persists, and they all get into trouble.