I honestly wish this were the case for 80% of the calls I make to local stores. Most people they have working the phones do not care about the inventory and will just say they're out of stock or don't know if there are any on the shelves. This goes double for requesting a special item from a store that would normally carry it, but doesn't. They put the order into their "system" and then it disappears, never to be heard from again.
Calling retail stores to do anything other than to see if they're open or, in the case of restaurants, get a reservation is just wasting time. At least for the retailers that I've communicated with.