Seats. Just about anybody who's ever gone to a sporting event has had that happen. Sometimes it's unintentional, sometimes it's not.
But you never lay into the person that's sitting where you have tickets. That's arrogant and thoughtless. It reflects terribly on anyone who would do it. A simple "excuse me, I believe you're sitting in our seats" and then a tiny bit of amicability to work through whatever the cause of the confusion is are all that the situation requires.
Especially if you're the family member of a coach, you know that anything you do in public reflects on the team. Like it or not, fair or unfair. I have a patient who's dad on the Vanderbilt football staff. He was telling me about a similar goof up they had at an earlier game this year when a recruit and his family that this kid's dad had invited to the Georgia game mistakenly ended up in the seats of the coach's family. As this kid told me, he laughed and said: "it took a bit but we found new seats; there's no way we were asking him to move because we knew how hard dad worked to get him there".
So my take away from this entire situation is either this never happened at the game, or if it did then whoever in Funk's family did the chewing out is completely oblivious to the hard work Funk is trying to do in recruiting.