alt Hacker NewsThat's not really an argument, in europe, automated tolls have existed since 1991 (this was actually the first ever country wide system in the world). [1]
Besides, since about 10 years ago, we also have a lot of automated toll roads where you don't even need to have the Via Verde chip now. You just pass by, it collectes your car plate number and it processes the payment for you. Then it's your responsability to check your inbox for the bill (or to set it up to pay automaticaly).
Plenty of automated barrier-less toll roads in the U.K. - typically bridges, and of course the London congestion charge zone.
The longest toll road still has (automated) barriers to stop at though - the M6 Toll.