Our priest reminded the parish, during a homily, that Judas left early too.
It had a significant effect on the number leaving early.
We have SOME but not too many sneaking out before the dismissal hymn is over . . . there has already been some pointed comment made and it seems to have had an effect.
My position is, I'll spend some time listening to the postlude (yeah, we have a postlude and there are actually folks still around to hear it), go down to the choir room and hang up my robe, visit with some friends, maybe grab a cup of coffee from the kitchen. By then all the traffic in the parking lot is GONE, and good riddance. No need to sprint to try to beat the Baptists to the Waffle House, 'cause they're all already there (this is an 11:30 Mass and by 12:30 all the Baptists around here are long gone.)