I got two boxes of Extrusion Detection copies from my publisher today. Looking at BestBookBuys.com, I see Barnes and Noble lists the book as "Usually ships within 24 hours." I would give B&N a try, or order directly from the publisher, if you really want a copy of the book quickly.
Alternatively, you might be able to win a copy in the monthly raffle held at my local ISSA NoVA chapter meeting. Last time I provided a copy of Real Digital Forensics and a Network Security Operations T-shirt. Tuesday (tomorrow) is the last day to RSVP for the Thursday meeting. Steve Crocker will talk about securing DNS at the Oracle building in Reston.