Thank you everybody for your help and input.
Seeing as the Dealer just wiped the codes and gave her a lame explanation. there is little more she can do at this point.
If or when this happens again, she is a little more informed with regard how she stands with this Guy (she does not trust him)
I also sent her this:http://www.autofocus.ca/how-to/knowledge-base/what-if-the-dealer-cant-fix-your-car
and told her if she does go back to get a copy of the work order and a record of CEL code that came up, and to consider getting a second opinion from another Dealer.
Again She, and I extend our thanks to you all