We [expect] EZ Pass to be pinged at toll booths or on toll roads in general, that's the purpose....
But to find that it's being pinged on regular city streets is a step beyond.
E-ZPasses Get Read All Over New York (Not Just At Toll Booths)
....The man, who goes by the Internet handle Puking Monkey, did an analysis of the many ways his car could be tracked and stumbled upon something rather interesting: his E-ZPass, which he obtained for the purpose of paying tolls, was being used to track his car in unexpected places, far away from any toll booths.
Puking Monkey is an electronics tinkerer, so he hacked his RFID-enabled E-ZPass to set off a light and a moo cow every time it was being read. Then he drove around New York. His tag got milked multiple times on the short drive from Times Square to Madison Square Garden in mid-town Manhattan
»www.forbes.com/sites/kashmirhill ··· -booths/
And yes, this is not surprising or new, but the fellow has documented this in a new way.