Not just Jiffy Lube. Your mortgage broker, real estate agent, lawyer, gardener etc. General problem with society. Unfortunately cars affect almost all of us.
One way to help with these type of automotive problems is to get rid of the flat rate system. Have techs paid hourly by the dealership and then have the dealership charge customers flat rate. This will cut into the dealership owners profits and they won't do it. But it would be in the customers best interest.