As your dealer is probably not a bug expert, I would offer to pay for a 3rd party exterminator to inspect after the dealer has opened the walls for repair and make a determination, in writing, as to the correct course of action. Hopefully everyone will be in agreement. After repair and before closing the walls, I would have it reinspected just for my own pease of mind. I would ask the inspector about the time limit of re-infestation and try to get an extended warranty just to cover possible re-infestation.
2014 Sunseeker 3170 DSF
Dorothy, Garrette and Miss Bella.
Retired and having fun.