Oh no you you didn't just go there (as my head almost snaps off from attempting to make that side to side motion). No one tells the story of my first run down the track when I was 16 (btw: this was at Fremont Dragstrip) unless I tell it. It's easier to cushion the embarrasment that way. ;)
As for the fee to be under the canopy, there really isn't one, unless ... you actually want to sit in one of the spots that has shade. ;)