does nissan/infiniti repair all TSBs even if the vehicle passed the warranty coverage? yes? no? does the warranty even matter?

i brought my car in at a dealership for a TSB regarding a 'clicking noise coming from the rear axle'. my car has past warranty @ 60k miles and the service tech advisor tells me the dealership cannot work on my car. naturally, i become outraged... so i talk to his "boss". the so-called "boss" tells me they can talk to infiniti HQ and ask for a good-will service to fix this garbage. this is non-sense.

generally i have a feeling the stealership is trying to ****** some money from me because my g looks 'expensive' with the modifications. clearly, i'll avoid this stealership from now on.

thoughts?

 

No warranty = No TSB work