I'm so glad the chances of San Francisco hosting the olympics in the near future are basically 0
In addition, we would need TV-BE-GONE beacons as well to cause IR sweeps that shut off all TVs in distance.
Digital civil-disobedience.
WiFi APs with hidden ESSIDs still send beacons, but don't include the ESSID. This means that they'll obviously add radio noise.
To cut down on the interference caused by the added radio noise one could either hardwire all the pseudo ap's to use the same channel, effectively blocking anyone from using it, or have each ap actively scan and switch to the least used channel at a set interval.