Piscataway, we have a problem
I just checked out Rutgers schedule and it turns out the Scarlet Knights have a home game against Maryland beginning at 3:30pm this Saturday... the same exact time Columbia and the Tigers kick off at Princeton Stadium.
I'm not sure the turnpike will be a nightmare, but there's a chance traffic will be heavier and you should give yourself more time. The good news is the traffic to Princeton goes off of exit 14 on the Turnpike and the Rutgers traffic peels off at exit 9. But either way, you should probably leave yourself some extra time to make sure you get comfortably.