Here in Florida the State recently had to reverse a lot of convictions and refund a lot of money to people who were charged with not paying due tolls with their E-Passes.
Gee, whiz! The E-Pass transponders died, and their users had no way of knowing the tolls weren't being accounted.
Pay cash. Don't use anything computer-based. The convenience isn't worth the vulnerability.
Computers make mistakes, and computer records can be tampered with.
And they can be used to track your location.
And they are yet another step toward the cashless society the government wants to inflict on us so they can erase any persons assets anytime they wish.