Neat idea...catching some of the lesser known "events"...
I was also thinking about some of those tilt-shift videos from a couple years ago...but it would take a lot longer in one place to pull it off since they typically take a time-lapse and then assemble as a video. Not sure a real-time tilt-shift would look quite as cool. It also only works at the right angle, which is from above, like the Main St. Station or something like that.