What I would expect to happen is when an AOS or iOS device falls in your range in the future, it will not report the AP to the mothership. But the motherships will still remember the history and perhaps be able to continue exploiting it. To have more certainty, I would change the MAC address on the AP if it lets you, and perhaps also change the prefix of the SSID for good measure. If your AP gives no means for changing the MAC, you could investigate replacing the firmware with openwrt -- but probably not worth the effort just to change the MAC.
When I setup an AP, I chose the same SSID as a neighbor but then added the suffix for fun.. to confuse things. Then they changed their SSID (perhaps in fear that something dodgy was going on).