I stepped on a snail. Is there a way I can help it recover?

The shell is broken into several pieces, and I can see the snail's body through the cracks. There are signs of life, but it is not moving along the path anymore. I'm sure it's in shock now and I don't have confidence in its chances located there.

I've read this guide on caring for snails that have been stepped on, but I don't know if it's safe to move it now, if I have a container for it in my shared accommodation, or generally where to start.

I didn't even have a credit card to scoop him up and leave him somewhere safer. I had to keep going but I can return tomorrow and check if it's still there.