Yes, if you make him move from the tile he's standing on, save, then hard-reset, he will still be considered stationary. He will remain like that until you leave the Dreamyard (so if there are any other captures you want to do in there, you should do them at the same time).
Thanks a lot, Agonist.
Is it possible to enter a seed in time finder instead of having to search for one? If it is, I would like the seed you used to get that shiny flawless heatran of yours, Agonist.