I am hearing u loud and clear, because my son said his phone and NONE of his friends cell phones had been working right when he finally called me back an hour or so later. Might have been the same game (don't follow the games these days). He was at a TCU game in FW, Tx.
Your son was at a TCU game in Ft. Worth and his phone didn't work. I was at a Texas Tech game in Lubbock, and my phone didn't work......ALL DURING THE SAME TIME. I've NEVER had trouble getting my cell phone to work during a football game.