I discussed the use of ADSB for FAR violations with a DAR said it that ADSB alone can’t be used solely as a means for issuing a violation. Then I asked about Martha and the bridge and he said the Ohio DOT had a crew on the bridge at the time that saw her fly under the bridge. Also the sky beacon isnt very reliable below 1000-1500’ AGL since it requires the appropriate towers to trigger their response. Unlike my more expensive Garmin gear that tracks me down to short final. In fact after studying the skybeacone I don’t think it would be approved today.