The incident was caught on video and uploaded to YouTube. It reportedly showed a DOJ agent dropping a football from the helicopter to his son, a player, on the field at Oak Ridge High School in El Dorado Hills.
Top officials at the state justice department reportedly did not know that the chopper - usually flown for drug busts - was being used to hover over the game.
The cost to taxpayers for use of the helicopter was between $900 and $1,300, not including the cost to pilot the aircraft.
Larry Wallace, director of law enforcement for the California DOJ, said he will now personally approve any authorized use of the helicopter.