Detailers will always tell you something is awful, and only their enormous skill was capable of resolving the issue. If they told you it was easy you would do it yourself with some McGuires Compound, Polish and Wax and a pad attached to the end of a drill. I fixed a self inflicted set of marks on my boot myself.
If it's a lease, and you aren't going to do PPF why do you care? You will get some swirl marks again no matter how carefully you wash it.