"Stinty?" It's been too long, man... :lol

Trader Joe just made an error in my favor. I walked out of the store with more than 40.00 worth of free food. I didn't realize this until I got home. There is a heavy bitter rainstorm out there just now (30-something degrees), and gas ain't that cheap these days, is it? Should I go back to Joe and point out his error?