No, I don't think you get carded to make sure you're old enough to drink.
From the post:
To celebrate Talk Like a Pirate Day (September 19th).
From now through midnight Thursday receive 20% off of And a Bottle of Rum and the ship counters. Just use the coupon code: pirate
Good for both PDFs and printed sets!
For more info check out....
And remember, you ALWAYS get the PDF with the printed copy!