If you use the liquify filter instead, you can save your mesh.
Or, here's a workaround if you want to use Warp:
Convert your layer to a smart object before you warp it. When you want to use the same mesh on another thing, duplicate the warped smart object, and go to Layer>Smart Object>Replace Contents to swap the other thing in (you'll need to save the thing on its own file first.)
Thank you Emily for responding, I thought I just got lost in the shuffle after a month.
I was trying to save the warp co-ordinate like you would a style, custom shape or brush.
Something to be saved without needing a layer from an old file. Someone from another forum
said you can't do that with warps.
I liked the idea about using the liquify filter because you can save the mesh, but I thought that
filter only worked with straight lines, not curves of any sort, maybe I'm wrong, I haven't tried it yet.
Your other idea works, like it did for me, but i guess the warp feature just doesn't want to save a custom