i think you should call and ask a SA to check for you.....they can do a company-wide search. FWIW, i never did see a trish at any of my 'regular' nordstrom stores...only hudson.
bag.lover just posted a 20% off deal at bluebeeonline.com in the sale thread, and i'm almost sure i saw a dark brown trish there.
I asked my SA to check for me for another dark brown Trish to replace my damaged one and they said there were no more in stock. Did you get another color?