Funny sidebar story about GWB tolls, back about 20 years ago when they were merely expensive and not requiring emptying your life savings in one passage, about a trip I made up to the Boston area. I was towing a street licensed car on an open trailer. Both that car, and the tow vehicle, had EZPass transponders. Went through the EZPass lanes, figuring that the system would count axles and ding me accordingly.
But what it did, and this included the tolled Mass Pike portion of the trip, was read the truck as one vehicle and the trailer axles as another car following, via the transponder in the windshield of the car being towed. So I only ended up paying the two car tolls, instead of the at least 3x tow vehicle-trailer one. A bit of an oopsie that worked out to be about $20 to my advantage, discovered when I received my account statement and both transponders were showing sequential tolling all the way through that trip. I'm sure there was something about it I could have been fined for, but after 20 years the Statute of Limitations has hopefully passed.