If you press him a little further and annoy him enough, he might crack open the Book of Concord and point out Article VII of the Augsburg Confession:
For the true unity of the Church it is enough to agree about the doctrine of the Gospel and the administration of the Sacraments. It is not necessary that human traditions, that is, rites or ceremonies instituted by men, should be the same everywhere.
They should do this thoughtfully and without giving offense, in an orderly and appropriate way, whenever it is considered most profitable, most beneficial, and best for good order, Christian discipline, and the Church’s edification.
Likewise, when there are useless, foolish displays that are not profitable for good order, Christian disciple, or evangelical practice in the Church, these also are not genuine adiaphora, or matters of indifference.
When the confessions are taken seriously, one is hard-pressed to find that any of these innovations are in any way compatible with Lutheranism. Indeed, it deems that by their very definition, such willful expressions of worship effectively remove these churches and pastors from our very fellowship.
A house divided against itself cannot stand. That we are divided in our worship practice is indicative of a bigger problem, that we are divided in our doctrine of the Gospel and the administration of the Sacraments. It is these fundamental articles of faith that are under attack. If it were not so, there would be no divide. Now is the time to stand up and take notice, to take action, and to return our Synod to the Confessional course we once sailed.
photo credit: Mikett