NHTSA Complaint #11491120 — 2014 HONDA RIDGELINE

Safety Recall for rear subframe rust was "performed" at local dealer. Quality of work was questioned in that safety recall indicated dealer would removed corrosion on said subframe and apply anti-corrosive wax. Dealer notes they applied some anti-corrosive wax and some undercoating to a small section but did not coat ALL corrosion areas they cleaned. I had area reviewed by independent repair shop who noted the area was a concern and should be coated in the near future to prevent further corrosion and damage to frame. After discussing this with the dealer service department they informed me that was my job and my expense and told me to "have a nice day" and hung up. Is this appropriate behavior for a safety related item that could result in a fuel tank detachment or fuel leak?