The vast majority of the tolling infrastructure no longer uses plazas. In California and in Texas, the tech exists to prevent you from even noticing. That's not deployed everywhere, especially in areas where they do rate-limiting, like the Bay Bridge, where they need you to slow down and stop when the bridge traffic gets too high, but most areas you wouldn't even notice.

This is also causing problems with people using fake plates and magnetized plates. There's an entire growing industry around it. We're going to have to eventually start requiring some kind of transponder that repeats your plate number for sensors that can't be trivially covered... or you know... just raise the gas tax.

https://youtube.com/shorts/HTVBMPGvZJw

https://youtube.com/shorts/lKXv_bA4lYs