So at the ticket office, not over the phone I assume? Phone recording says it's sold out, probably too late
This is one tough game to get a ticket for. The Bisonville Ticket exchange has a whopping 2 tickets for sale with a whole page of WTB. The NDSU Ticket exchange is the same. Stubhub has about 9 tickets between $225 and $400 each.
Craigslist is by far the best option. You'll pay $125 each but compared to the garbage on Stub Hub, it's a fair asking price.