Trent Dilfer going viral for absurd reason during Tennessee vs. UAB at Neyland

What exactly is Trent Dilfer doing?

The UAB coach that is likely on his farewell tour with the Blazers has had quite the day thus far. One of his players should have gotten ejected for a dirty kick on Tennessee placekicker Max Gilbert. And otherwise, UAB is getting dragged up and down the field by the Vols, losing 49-10 midway through the third quarter. So Dilfer must've figured this was the right time to add a photo to his social media?

In the words of Saved by the Bell's Mr.