Around Tampa they have largely eliminated cash at the tolls. If you don’t have the electronic pre-paid toll device they take a picture of your license plate. Then they send you a bill.
I’m sure they take your license plate all the time and track who goes where.
Just think: with totally electronic tolls, they can determine if you are keeping the speed limit. If you are reaching each destination ahead of schedule, they can send you speeding tickets in the mail. To get my sunpass, I had to register my name and car, so “they” know every time I use the toll road and where I go.
Take a picture of a dollar bill and send it back to them.
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In our wonderful State of Illinois (NOT) they’ve doubled the cost when passing through a toll if you have cash vs going through with an I-Pass.
Pretty effective way of promoting the I-Pass.