I contacted the Big Ten office today and asked about a couple of the officiating/game management situations that happened during Saturday's Illinois-Penn State game.
The multiple snowballs that were thrown during the game were in the hands of Penn State game management officials. However, if a snowball had affected play, say hit a field goal attempt in the final seconds, the on-field officials would have had the ability to make the call, including awarding a score for the kicking team.
What's really interesting about the snowballs during the field goal attempt by Derek Dimke was that they appeared to come from the side where they would have helped the kick. In that case, it doesn't appear that the points would have been taken off the board.
As for the lack of instant replay on the interception involving a prone A.J. Jenkins, here's what we got back from Big Ten spokesman Scott Chipman:
"The Big Ten does not comment on officiating or judgment calls, so we would not comment on your first two questions," Chipman wrote.