Rick, you are doing the right thing by waiting.

Had one of mine do that years ago. Had to leave, so left my hunting coat and a bowl of water there.

Came back in 3 hours and there he was --- asleep on the coat with an empty water bowl.

All my dogs are now chipped.

If you have friends with dogs, get them out there, they might hunt your's up.

Best of luck Dogs are the best things that happen to most of us.

Paranoia strikes deep
Into your life it will creep
It starts when you're always afraid
Step out of line, the man come and take you away