I was at the game and had seats right behind the Spurs bench. I think Pop was mad at Tony for taking stupid shots along with the defensive lapse on Stuckey. Things got heated because Pop tried to correct him (right before he went up to shoot his free throws) and Tony snapped at him. Right after Pop told George to go in on the next stoppage. As Tony walked past Pop, Pop yelled something along the lines of "What the f*&%... you think you're a hall of famer now??? Get your ass on the bench." After that their was serious tension going into halftime.
From what I could tell Tony has a major at ude problem from his jestures and actions before and during the game. He was acting like he was the best player on earth and didn't have to listen to his coach. Maybe this is why George Hill is Pop's favorite player now. (George was very humble all game and before with the fans).
After seeing the tension I'd be suprised if Tony resigns with the Spurs given that the Spurs don't trade him before. I was a huge Parker fan before but he seems way to Hollywood now.