ORIGINAL: mobow
TECHNICALLY you've got an illegal buck. It was never checked in, never tagged. You're going to have to contact the DNR for some type of permit to have it mounted.
EDIT: It will need to be treated as shed antlers I believe, and there is some type of permit required to have those mounted.
I did contact the DNR this morning and I'm waiting on a call back from the warden.
Greg, great idea about selling capes to taxi's. I'll have to keep that in mind for the future.