Thanks for all your advice, and I can't believe that you have 27,000 posts on here! So just to be clear, if we do a marriage ceremony at the courthouse, and it is already past the I-94 expiry, is there also a risk of getting in legal trouble at the court house itself? It seems there are police there as well.
I ask because there are other people who have authority to perform the ceremony so there could be other options.