When it doubt, wait. It gets no easier than that. If you're gonna wait, make it 4 or 5 hours, and/or leave yourself enough time to at least track for an hour or 2 with daylight if you can in case you get a chance on a follow up shot at a weak deer.

You said it was quarting away right? you may of caught the liver also. just be patient. there are no doctors in the woods.