I doubt that any player would be able to accurately do so and make it look like a forward pass. There is a 5-yard penalty and a 10-second runoff for actions that conserve time. There is wide latitude afforded to the referee to judge that. Such a deliberate throw would not have the arc of a regular pass, and the intent would be obvious. This is not so obvious with a punt, because its trajectory can realistically follow such a path.

What about using this rule to a team’s advantage? Check out these unintended consequences of the rule change. Why spike the ball when pegging the scoreboard lets you keep the down and reset the clock?

http://www.east-coast-bias.com/2009/08/nfl-orders-do-overs-for-dallas.html