Using WiFi for Geolocation has nothing to do with the SSID. It's based on the BSSID (MAC Address of the access point) You can no hide that, no matter how hard you try. Pretty much every Android and iPhone / iPod collect the BSSIDs that they see and report back with the signal strength and GPS data.
If you do not want to be located, you will need to change the BSSID daily. Or, turn off the WiFi completely.
Network & Security Engineer
Intrus Technologies, LLC.
Rancho Cucamonga, CA, USA