That sounds like torture! You are 17 days out and someone is doing that to your leg? I'd be surprised if it did NOT cause damage. No one hands-on forced my surgical leg to do anything post-op, and I still ended up having my gluteus medius muscle torn very soon after my surgery, somehow, don't know how. It has never healed and I need a surgery to repair it. I have always sort of thought that maybe it happened because of that exercise that the home PT gave me, to stretch my leg up to 90 degrees while I was lying down and holding it up there with a loop of fabric around the middle of my foot, which is just what your PT did to you, plus that other insane manipulation.
I don't think I'd feel the need to be "polite", but just state matter-of factly that you don't want her to touch you during PT. If you can't do it on your own, you probably shouldn't be doing it. And, as Josephine here says often, you probably don't need PT anyway. Sorry if I sound so forceful, but it just kills me to think that she hurt you when there is all of that healing that is trying to go on in your hip! And I got hurt, and I am still wrecked over a year later.