https://brobible.com/sports/article/texas-techs-fans-planning-austin-takover-ticket-code/

Some enterprising Baylor fans might have to see if this is still available and take advantage!! It would be wonderful if the game in Austin featured a crowd that was mostly green and gold.

UPDATE: I just checked it out. It's only for seats in the upper levels and there are several sections without any seats available, but there are several with openings. Prices range from $10 to $25, each with a $4.50 fee added. That's still less than $30. Not too shabby.