This is a dead ball foul and as soon as the QB says, "Coach, wrong ball." You should kill, throw the flag, and mark off the 15 yard penalty.
See the following case play:
9.9.3 Situation B: | From a field goal formation, potential kicker A1 yells, “Where’s the tee?” A2 replies, “I’ll go get it” and goes legally in motion toward his team’s sideline. Ball is snapped to A1 who throws a touchdown pass to A2. |
Ruling: | Unsportsmanlike conduct prior to snap. The ball should be declared dead and the foul enforced as a dead-ball foul. |
Comment: | Football has been and always will be a game of deception and trickery involving multiple shifts, unusual formations and creative plays. However, actions or verbiage designed to confuse the defense into believing there is problem and a snap isn’t imminent is beyond the scope of sportsmanship and is illegal. |