I'm sure there are still wristbands available if you go before noonish. I was #56 and there were definitely not 100 people behind me when I left.
Also, from what I hear (not 100% sure) the first 160 or whatever who get numbered wristabands will be in the room for the performance.
They are giving out additional wristbands for the signing. They just can't fit more than the 160 in the room.
So, it's not a complete loss to try and go later even if you weren't there this morning. Or perhaps call the store and ask if the info I'm telling you is correct.
The B&N window display is adorable :)
"It's the little things; the details, that distinguish the Barbra Streisands from the Rosalyn Kinds."~Gilmore Girls~