Griffin Book?

Hello:
I was backed off twice at a Non-Nevada casino.
Not too long ago in Vegas I had a couple of experiences at a
casino, apparently known for sweating counters, that
made me think I might be in Griffin Book or SIN.
I got a players card with my real name and address.
The first time I gave the pit my card, while he was
entering it in the computer I believe I heard him mumble
to someone "...possible professional..." At a later playing
session, same casino, they started reshuffling each hand
soon after I sat down, the dealer saying something about
"boss's orders".

Anyone know how to check if I'm in the book?

And any advice for a rookie player who managed to get himself
in the book so quickly?