This is mystifying to me. How desperate are you to get a deer? Maybe someone is coming back that evening or even the next morning to get their deer? Maybe the wife called and said the baby is sick; get your ass home right now.

You should never, ever take a deer you didn't shoot. If you want to pick up road kill go ahead. There is plenty of that and no one will be affected by your choice to do that other than a perhaps a few buzzards.