Transfers can be a royal pain. They tend to be very high touch when people want to call/email/text you 20 times letting you know they paid, letting you know it shipped, telling you the tracking says it will arrive tomorrow, asking who NARINIAN is who signed for it, can I come today, why are you not responding to me.... And it goes on. My regulars know to just buy and wait. Once the gun is here, I have taken possession (others sign sometimes), it is opened and logged in, I always text my customer letting them know they can pickup.
I suspect other shops have the same challenges where for the $25 fee the customer wants to be coddled on a 4 hour schedule until the transfer is complete. That results in higher transfer fees to cover all the wasted time.
But for the OP, just call the damn shop and ask!