In this scenario, could you inform the players, or at least the captain that this is the last play?If ball goes dead and time has elapsed unless it's a penalty it's game over for me.
Sure you'll get some moans but it's always easier to defend something correct in law. Play is not extended for a corner and the more we reinforce that, the less controversial it will become.
Or is that setting yourself up to fail when there is a foul or handball in the box and you have to award the penalty? To cries of "YOU SAID IT WAS THE LAST PLAY"