I have been to Jiffy lube, Wal-mart and a few others and I have had all the scams tried on me and all the nightmares happen too.
Wal-mart didn't change my oil filter or replece my air filter screws back on after they checked my filter. One time they didn't tighten my oil drain plug either. Even the dealer I paid 4 times to change out my fuel filter didn't even change it out. I marked the original and it was still there. When I showed them they lied every time and tried to deny it.
Jiffy lube tried to tell me my VX needed my brand new K&N air filter changed out for one of their cheepo's, I needed my Transmission filter changed only after 8,000 miles on the odometer, I had a bad catylic converter, bad muffler, bad manifolds, injectors needed cleaning, my steering box was worn out...I'm serious I could go on and on and on ..they wanted me to either gamble on me doing the repairs at their shop or some other shop.
I told them to blow me and I had a serious talk with their manager and I left.
Now I do MY OWN maintenance. Plus, I purchased one of those Fram oil drain plug with a screw in drain hose. Makes for a very easy and mess free drain process especially if you have a Diamondplate Steel Skidplate.