RE: I screwed up BIG time
Well, I know someone who shot one deer over the limit a couple of years ago. He checked them all in and did not realize that he had committed a violation until he got to the butcher shop where it was pointed out to him.
He never did hear from the DNR about it. I think I would keep my mouth shut until they come knocking on the door. It was an honest mistake. Turning yourself in won't bring the turkey back.
Good luck.