(4) If a Wisconsin resident having such support obligations of a minor, as stated in sub. (1), wishes to marry in another state, he must, prior to such marriage, obtain permission of the court under sub. (1), except that in a hearing ordered or held by the court, the other party to the proposed marriage, if domiciled in another state, need not be present at the hearing. If such other party is not present at the hearing, the judge shall within 5 days send a copy of the order of permission to marry, stating the obligations of support, to such party not present.