Small fee? You sure that was a Motorola dealer? Any time I've asked about getting a radio reprogrammed it was like a minimum of $50 and they'd refuse to do GMRS frequencies. That's why I pack a GP68.
I'd be interested to know of a reasonable place too, the cheesiness of the GP68 is starting to wear on me and I'd rather have something a little more robust, even if it means no field-programmable CTCSS.