Erika, call your county clerk of court to find out if you can get the marriage license without your fiance present. I know that here in MI, I can take your fiance's info and get our marriage license. If you can do that, then you can find a minister to marry you on the weekend. We're getting married at a nice bed & breakfast, where we'll also have our reception. The lady who is marrying us is a non-denomination minister & will marry people where ever they want to be married.
If you can get the license during the week without your fiance present, you shouldn't have a problem finding someone who can marry you over the weekend. Let me know if there is anything I can do to help. You cold always come up here to MI to get married. hehe