I doubt that would happen. If nothing else you could do what people in Mexico do, where the State does not empower the clergy to perform legal marriage ceremonies. Peole just have two ceremonies, one in the church, one before a civil magistrate, or clerk whatever, the equivalent of getting married by a Justice of the Peace. For legal purposes only the civil marriage counts. The other one, if you choose to have one, is between you, the clergy of your choice, and God.
Because my daughter and her husband are of different faiths, they chose a minister of a third to perform their ceremony. I think he is younger than they are, in fact I'm sure he is.