rescued pine

this little pine tree was going to be destroyed by a bush hog cutting grass. i found it growing on the side of the road. its spring here, not sure thats a very good time to be digging up a tree and transplanting it, but it faced certain death where it was. if it lives id like to work with it. any thing i can do to help its chances for survival?

I think it's chances would have been better in a larger nursery pot for a season or two.