[RMcNeal]

I made the mistake once of having my wife's Expedition oil changed at a 10 minute oil change place. Found out a month later that they had removed the cap and let out about a pound of refrigerant from the air conditioner.
No one had been under that hood but me since the car was purchased until they did the oil change. The cap was found lying on the top of the motor.
Put dye in and replaced the refrigerant. No leaks. I guess they were hoping I would return and pay them to do that too.