This is my understanding of the situation.
IF IF IF you requested on the first go-round, you are "first priority" so to speak. Right now, if I go to my "Tickets History", I have already been assigned Fiesta Bowl tix (Section 131, on the aisle at the 40 yard line, in case you were wondering).
Before the Cotton, the ticket office took additional requests, and I believe I got the e-mail for the Fiesta ticket-selling window as well (even though I maxed my number of tix weeks ago). Who knows whether they are checking ticket limits at this point.
I do not believe you will need to go to SeatGeek/StubHub, but call the Ticket Office to verify. They MIGHT be closed today, so maybe check your e-mails (and junk e-mail folder too).