Good service department in las vegas nv?

Hello. I am trying to find out if anyone has experience with a good service department in the las vegas nv area. Recently purchased a new XPT from ride now boulder and got the extended warranty with it. I know extended warranties are only as good as the service department submitting the claim. Does anyone have any experience with a dealer in town that won’t automatically deny a possible claim due to 30" tires and beadlocks.