Old Navy: 30% off entire store

I heard via Old Navy’s Facebook page that their entire store will be 30% off from April 30th to May 2!  The fine print says this:

Offer valid from 4/30-5/2/2010 at Old Navy stores only. Not valid online. Discount applies to merchandise only, not value of GiftCards purchased, packaging or applicable taxes. No adjustments on previous purchases. Not valid for cash or cash equivalent. Cannot be combined with other offers or discounts including Gap Inc. employee discount.

I don’t see sale or clearance prices excluded, so you could potentially find some really nice deals on stuff that’s already marked down.  You may want to clarify that the discount applies to reduced merchandise.