The message states that the crown jewels are to be found beneath the sign of san fancisco but they are actually behind it.
Nigel: I can't say I'm looking forward to spending the rest of my life in a Spanish prison. I've seen "Midnight Express."
Sydney: That was a Turkish prison.
Lorraine: Nigel was just showing me some artifacts.
Sydney: Something from the Revlon period?
"Faux Fox" is French for "Fox Forgery."