IIRC, when they first developed the system, they thought about people like you that would blast through looking to beat the system.
remember, people, EZ-pass was not developed by the state of NJ - it was developed by a third party company that has since sold these systems to several states. therefore, it doesn't work like things NJ builds. it actually works...
did you really think you were the first person to think that 120 mph would be fast enough to beat them? :shakes head in disbelief: