At the restaurant, Lois is to Jamie's left and playing with a bread stick. In the close up an engaged Jamie is looking to his right.
In the cold open a ball flies through and breaks a window. Given the relative inertia of the ball and the glass, the ball is unlikely to be among the fallen fragments.
It is highly unlikely the family would be dining at Luigi's for that long and not notice the extra charge applied to their bill every time.