Air Filter and Mass Air Flow Sensor

Possible but not probable, the mass air flow sensor probably failed internally due to high resistance, most do , a poorly fit air filter just causes dirt to enter the air intake tube and pass through the mass air flow which would cause it to be dirty and possibly read wrong but not fail, its a 2004 if I had to guess about 40-50k miles if so this is normal, ive seen them go out right off the lot, I would also guess you told the dealer yourself about the quick lube and air filter? If so this may be why they tried to blame j/l.