you make the call. Bellagio floor decision

[jayheaps]

triple draw round of a 40 mixed game. 2 players. Player A in small blind and player B on the button.

After the second draw. player A check raises player B and player B 3-bets. Player A call.

Now, Player B taps the table out of turn to indicate he is pat. Player A taps as well. Now Player B wants to break his hand.

Should he be allowed to?