"Craig Roberts wrote;

Several NFL teams have been doing that, most notably Minnesota, for =
games involving Green Bay as the Packer fans are notorious for =
traveling to games (since they can't get home tickets).

It's the first I've heard of a college doing so, however."
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Wisconsin fans have come to expect an 'upcharge' for away game tickets for some time now.  Last week the WI at IL football game extorted a small bump in prices for just that game, and Badger fans have been known to buy season tickets to get a seat for away games.

We're happy to pay the price to support our teams, we know we're worth a little extra.