Wow, lots of information here. Thanks for all the posts guys. As you know, I'm a hedgehog person, but I try to learn as much about chinchillas as I can, and I had never seen one quite that color before. His fur didn't look all that greasy, so it really threw me.
I think someone in the OR area needs to go adopt the poor baby, take some better images of him. Just think you will have yourself a rare "brindle" colored chinchilla!