Dear MYK Hunt,
To answer your questions and obviously not give names, the Cpt radioed ahead. I personnally did not talk to the cpt because the purser and csd took over the situation from me. I think if the situation could have been videoed you could have thrown the book at the Pax but really not much was done. I know the flight deck knew abut the pax because they raioed ahead but as far as I know that was the end of the matter.
Thanks for asking
Peter