Here are a couple of questions which might not be answerable but I'm curious.
1. What happens, (in general), if someone reserves and pays for a turkey dinner but doesn't pick it up by whatever deadline the store actually does impose?
I looked on line at some sample places which are advertising turkey dinners for TG & Christmas and they usually give an exact time frame of when the meal must be picked up. None of them say what happens if you don't pick it up.
2. Would the deli have honored the photocopied receipt as a valid proof of purchase had the winning bidder actually tried to redeem it? There is a chance they might not have.
Again, though, this does not affect the fact that Turkey Lady took something which did not belong to her. Once she made the donation to the church, it belonged to the church. After that, any attempt by her to obtain the turkey dinner constitutes stealing.