Hey there! Just responded to your email. As for bar takeover, there is a PSU LA Alumni Assoc welcome party on Jan 1st after the pep rally at Berkshire House Pub on N. La Brea in LA. Pep rally is 3:30-4:30 and party is after (I think it starts at 5ish).
As far as between the parade and game, I dont know if anyone does a bar takeover. Usually people make their way to the stadium to take all of it in or tailgate there. The game starts at 2pm but on field activities start at 1pm I believe so by the time the parade ends, and find your way the stadium, its not a ton of time.