Get a before and after printout from WIM to see how badly they left your car steering. If Tony says it's bad then do some copy's and send them to the appropriate trading standards/MOT people and tell them they are putting lives at risk and get the tinkers sorted.
It doesn't work that way.
Tunnie asked them to replace the track rod, that's what they did.
If Tunnie had said, replace the track rod and set the toe back to these settings (on WIM sheet), only then would they would have to have seen that through.
If it was me doing the job then I would have done it as I told Tunnie it should be done, however it sounds like they took no notice of where the old track rod was positioned and simply "guestimated" it (quite badly).
Even so, they appear to have done what they were first asked, so there is no valid complaint.
I will add however that if they are that lax when doing even the most basic of tasks, I certainly wouldn't use them again because that is, without doubt, piss poor workmanship.