From watching the tape:
Helton was in bounds when Bell Co.'s #32 obliterated him, sending him out of bounds and knocking one of Bell Co.'s lineman down like a bowling pin. I'm sure Helton felt that hit for a while.
Calling is just calling everywhere. I think Central got away with quite a bit of holding.
Why would the band get in free if they weren't performing? They become fans at that point and should pay like anyone else.