That is horrible. I can't imagine how scared a parent would be if they were not aware of their rights. I know how scared these people used to make me. Now I know that while a few CAs are ok to work with, so many are truly horrible.
Just a note...I was sorting through my files this weekend and out of sheer boredom, was looking up the names of the people who signed off on the collection letters on MySpace...wow. It truly puts a lot into perspective. Most were in their early 20s, high school diploma at best and complete thugs.