I’m really hoping these two events are not linked as it would be a bad advert for Waze drivers!
This happened on the pedestrian/cycle bridge in Cambridge back in January : http://www.cambridge-news.co.uk/News/The-moment-a-car-crossed-cycle-bridge-07012013.htm
Then this auto UR was generated recently in Waze (same bridge): https://world.waze.com/editor/#?zoom=6&lat=52.19593&lon=0.1404&layers=BFTFFTTTFTTFTTTTTTTTTFT&segments=144019321

I’m hoping/assuming it’s just a moped or cyclist using Waze.