I would guess the loop is the boot. Either that or it could be the bus stop chicane like you said, you can't really get "inside" that though. That does remind me viewing near the bus stop is pretty cool also because the track is pretty much at eye level. I like watching the Cup cars practice there because you can see them lifting the right front tire off the ground every time they go through there.
I'm not going on Sunday any more, girl I know took off of work just so she could watch the opening day of football with me, so I'm kind of stuck doing that now.
Let us know how the event goes, I'd like to make it to this some year.