The game was terrible. Easily completed in under 2 hours with next to no challenge. No character progression and next to no RPG elements. All those 5 star ratings in the app store? Those are Fara bribing users with 500 worthless gold to leave a 5 star review.
Seriously, the game was a...
These codes were stolen. Users may or may not get banned for using these keys, but the copy of Dirt 3 will most certainly be disabled (as many already have). Pro tip: if someone links you to a massive list of keys, it's probably not legal.
Neither the link here nor the link in the press release result in getting this app. While it may have been available at some point, it looks like it isn't on the store right now.
Originally, Costco had changed their coupon policy to not require physical clipping of the coupons....which is why they all have the same barcode. A cashier told me that manufacturers had complained about the coupons not being collected, though, so they generally want them cut out now.