Am I the only one who thinks there was backseat action at Jersey Boys?

The Angel that is in the backseat on Stage Right, is the actor in the Mary track. After the car scene she makes her entrance as Mary almost instantly. In order for this to happen quick change-wise, during the car scene she unzips and removes her dress (with the help of Bob) and removes her shoes. (She is crouched over with Bob leaning up against her.) When the car scene is over, between the movement of the car seats going off and the lighting, the average audience member doesn't notice her running offstage, practically naked. She then adds her Mary bathrobe, wig and shoes (and drink!).