I am in kind of a similar situation, I bought a Limited at not the closest dealer (price) with the expectation of getting service done there. It was my fault (fresh paint sickness) for not reading the contract at the point of sale after mentioning numerous times that I wanted no extras but the tire/wheel insurance was included . A expensive lesson in "BUYER BEWARE" that I will not do again. Even though it was my fault I felt violated and when contacted the selling dealer would not agree to a refund. I will not be back to that dealer and will have to face the humiliation/scorn of going to my more local dealer for service/warranty.
SO, tell the good another dealers (nicely) that if they will not arrange for a transfer that you will buy it from the bad dealer and then have them (good dealer) do the service/warranty work ??

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Good dealer will certainly do a transfer but the hold back could be different depending what the the dealer with the truck wants in return