I have an oversized snail. When the weather gets cold, it will suddenly stay in it for a few days. I can't get it out! Take it back. There will be another one outside in a few days. ...

Hibernate, don't move, just put it indoors.

Snails like warm and humid, and sleep in winter and hot summer. Don't break the membrane at the outlet of their shells. They deliberately sealed the shell to keep moisture. Leave it alone, just leave it indoors quietly.