You are given a bag with a reader device and a $$$ hold is placed on your credit card. There are only two scenarios:
1.) You take responsibility to get your bag scanned into the collection device and you get your $$$ hold back on your credit card.
2.) Your irresponsible with your bag and you you don't get your bag into the collection device and you don't get your $$$ hold back on your credit card.
What if my bag is taken away by a tornado? What if a marmot eats my bag? What if north korea attacks the us and sets up central command on mt whitney? Well then, you don't get your deposit back.
The system is not designed to keep you or a bear from shitting in the woods. It is designed to penalize the awful people who leave their bags on the mountain. Whoever leaves their bags on the mountain deserves their penalty.