From Hueganan's column on Rivals.com:
Houston QB Case Keenum had a big second half as the Cougars rallied from a 34-7 deficit to stun host Louisiana Tech 35-34. Indeed, most quarterbacks would kill for full-game stats as good as his second half. Keenum was 18-of-23 for 279 yards and two TDs in the second half, including 11-of-14 for 142 yards and a TD in the fourth quarter. He finished 25-of-40 for 351 yards and three touchdowns.
Granted, Cato isn't Case Keenum, but there was still a lot of time left (more than 5 mins to go in the 3rd). Hershey was just playing hard and helping to nail down the win.