re: Should I be able to scoop a couple tix tonight?

I think LSU sells tickets in upper 300 section for $6.00 each, unless you can pick some up cheaper (or free) elsewhere. If you buy upper sec tickets, there will probably be numerous seats in lower sections to which you could move.
My son is in the band; they've started a new thing similar to pregame in football, where they form on the floor and play "pregame" and turn to each section similar to the four corner salute. I reccomend getting there before game starts to see it.