Floor Model Car Seat...ugh!

gr8fulaa

So my sister bought me a Graco Snugfit on the internet, new in box, all tags on it. I just opened it, and it says "Display Only". Crap. So I assume it was probably stolen at some point. While I don't condone stealing, I don't want to throw away a perfectly good car seat (she did pay for it after all, so my karma is ok...) How can I find out if this car seat is safe? I googled it, and got nowhere. Is it exactly the same seat as you would buy in store, or is it different in some way? Anyone know? Thanks!