Well, I did some internet sleuthing, and was lucky enough to track down Chris online through his current semi-pro team. The team put me in touch with the man himself, and he was kind enough to get back to me with his address. He signed, and personalized, his one and only Orioles card for me. Unfortunately, the marker he was using had pretty well faded by the time he got to his signature, but after searching for a signed copy of this card for about five years, I'm not gonna complain.
Thanks for taking the time to sign for me Chris!