That 1,652 figure likely refers only to those who participated in the Bark at the Park promotion today because the announced attendance was a much more robust 15,929. Sunday's attendance was still more than 1,000 short of the average, however.
Nevertheless, those thousands of people and hundreds of dogs were witness to a pretty great game: Jeff Mathis hit a walk-off grand slam for the Marlins. It was the 3,000th home run in Miami history.
h/t Aaron R.