Christiano - cleaned up!
I kept an eye on the Nevada SPCA's site for a week or two after getting home because they told me he'd probably be up for adoption within a couple of days. It took a while, but he eventually showed up and I recognized him immediately when I saw his eyes. He cleaned up nicely!
Within two days, he was adopted. Not a surprise as he's a Labradoodle, a breed in high demand among families with kids, and had a perfect disposition. I asked the SPCA to pass along my address to his new people so I could keep up with how he's doing, but never heard from anyone.