In case anyone else reading through the archives decides to do this...
They've changed the design of their case. It no long hinges like a book seen in the pictures in the first post, but hinges at the bottom with the locking mechanism at the top. It is really, really easy to accidentally lock it - thankfully my Fred Meyer uses the same brand of security locks and since I had an empty, open case I was able to bat my eyelashes and get it unlocked.
So you want to make sure the little entire locking mechanism stays to the left - when I was monkeying with it after that I put a large wad of duct tape in the space on the right so I couldn't accidentally lock it again.
The metal piece is also no longer quite so easy to get out. I thought I couldn't get it out at all, and resigned myself to it being a waste. Being that, I was trying to pop off the plastic locking mechanism altogether, since I figured if I broke it it wouldn't matter, when I discovered it has just enough give to it to get the metal out. If you take a flathead screwdriver and put it in, then twist it, the plastic will bend enough to create a gap. With a nail file and ten minutes of messing with it later, you should be able to get the metal piece out.
I didn't bother trying to flip it over and put it back in like someone else suggested, partly because I didn't know if I could get it back in and partly because I didn't want to test my luck again and mess the whole thing up.
It's a little more time consuming than it looks like it used to be, but it still works well and fits the reader beautifully with the weather stripping. Great idea, and still only costs me about $11.