Try some diplomacy with them first. Ask the service manager for a bit of his time and find out what their intentions are for your warranty denial, then try to reason with them. If they haven't done anything to the truck and won't budge, take it to a different dealer. Sure seems like there is an awful lot of these reps running around recently. When I had my 05, I begged to get a rep involved, and that dealer made it seem like it would be difficult to get a rep there so I tried on my own and was told I needed to write a letter, wait for it to be reviewed, donate blood, give up first born male, etc. and then maybe a rep would get involved.
Studs will be worth it. IMO who wants their $$$truck torn into repeatedly.