Old coon hunters trick is if you have to leave and come back tomorrow leave a hunting coat or something with your sent on it so if she finds her way back to where you parked she will stay with the coat,
As a boy we had to leave coon hounds a few time and each time they were laying on the coat the next morning.
That trick works! I found a a bear hound at a forest services gate a few years ago and called the number on his tag. The guy asked if I was at the gate with denim jacket or the flannel shirt? I looked again and there was a denim jacket tied around the fence post where the dog was when I got him. The guy had knew where we were when I told him about the jacket. He had left clothes at each gate on the way out for the dog to smell and it worked. We met up down the mountain and gave him his dog and jacket back.
