They may have the “right” but there is no requirement that the local government must issue marriage licenses.
Reminds me of my calculus professor many years ago. He dressed very sloppy; his suit looked like he slept in it and his tie was always over his shoulder). He caught a female student mocking his sartorial disarray. His response was classic: “Deary (he called all females “deary” and males “son”), the university says I must wear a suit. They didn’t tell me HOW to wear the suit.”
Sounds like a typical math teacher.
ahaha There we have it!