True, but it is a good start. As I wrote, it is the Rancho Cucamonga Bass Pro, but those with the same frequencies now have a heads up and can build on this.
One thing to note, it appears that each store has 12 channel HTs. Case in point, the Manteca store. While the frequencies are different, the channels are in sequential order with the frequencies, IOW from lowest to highest frequencies. So I'd suggest using the list ( WPTY936 (Bass Pro Outdoor World) FCC Callsign Details ) already linked, find the store you're interested in, and go from there, starting with lowest frequency as channel one, and going to channel 12 as the highest frequency.