White dog at Diamond Heights Safeway (San Francisco)

I was just at the Diamond Heights Safeway (around 2.45 on 2 June 2012), and saw a small white dog gleefully scampering around the parking lot as though it had gotten out when it wasn’t meant to. I looked around for the owner, but didn’t see anyone.

It wouldn’t let me get close enough to check its collar for tags, so here’s a photo. In case anyone is looking for it.