We drove for 45 minutes.

Someone who knows Nabi might assume that she was lost, but it turns out she was perfect for this job - drive aimlessly around SF for 45 minutes until the party was ready and end up back at Cat's.

I tried to track where we were - and had a few clues along the way and actually figured out our location within about a half-mile at one point. It seems like it would be a fun game to play at some point.