A good honest mechanic is worth their weight in gold!!!
These type of places give themselves a bad name. Don't they realize they are killing the goose with the golden egg? I heard the same thing about Firestone locations also. A $30 oil change cost $400 to $500 in unnecessary repairs.
Shameful dishonest practices, always bite you in the rear. Seniors vs Crimes should be contacted to set the matter straight. I personally would have contacted the DA's office to make them aware, this business is ripping people off. If enough people complain, they might modify their practices.
Until then, I don't know how they sleep at night. Maybe a large cocktail bought by their customers, sitting in their easy chair.
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"It doesn't cost "nuttin", to be nice". 
MOM
I just want to do the right thing! Uncle Joe, (my hero).