I have african snails since 5 years ago and although it is practically impossible they can survive UK winters, I put all eggs in the freezers to avoid overpopulation in my box or even if they could escape to the wild. I will do the same if I were in a tropical country and there it would be a catasthrophe if I leave them outside.
It is a big responsability have any pet, still more if it is an exotic species. Unfortunately people are too silly these days to just take animals like accesories