Sully, congratulations on your new carpet! If it does well for you, it will be a showstopper. I always heard red and purples are a little more tricky, but I can't be sure if that's true because proportionally there are less seen or acquired.
If you aren't acclimating them to lights, I would strongly suggest it like Todd mentioned. Even my purple and blue I received fully colored needed to be acclimated after shipping.
I think more important than worrying about feeding it would be to give it it's quiet time to do what it needs to do to recover. It's going to take a bit of energy to move to where it needs to go, and it's ability to hold it's body up like pic #1 and 2 shows promise.
However, #3 pic is a little bit of a concern. A body that looks like that to me would be troubling. I don't know when you put it in your tank, but I would keep a close watch to make sure it's not constantly pushing 'chunge' out.
For example, after acclimating my haddoni, for the next couple of days it would leak out all kinds of cloudy, smelly, waste that I would directly pipette out from the stream. These were the lucky times that I caught it. I can only imagine how much I missed. If this is the case, please be sure to do your water changes as needed especially since it's so large.
Good luck, this is a color beauty I've always admired.