The Spurs outscored the Jazz by 22 paint points in game 3 and have been outscoring them by an average of 20.6 per game on the series.
We're also averaging a blistering 62.5 FG% inside the painted area through 3 games. For comparison:
League average amongst playoff teams: 52.4% FG
The Utah Jazz: 43.5% FG
I expect more of the same in game 4. Especially if Splitter picks up where he left off tonight and Ginobili decides its time for him to score via penetration.