If you zoom in on US 290 between Austin and Houston, all APs with "." as a name are generated by FakeAP. That's why I suggested removing them all.
Other fake names should be evaluated on a geographic basis.

https://wigle.net/phpbb/viewtopic.php?f=1&t=2238#p8353 explains it. Ideally any access point without a name (or whatever the period is supposed to signify) should be removed from the database immediately. There should also be a UI for administrators which allows one to delete APs from the map, ...