Just put into perspective.
In the Garden State Parkway in NJ, the Union Toll Plaza has 4 lanes that accept exact change. No people involved. Then few months ago, they "upgraded" the exact change lanes and put people to collect tolls, 24/7. Not to mention, it takes longer to pass the lane now if you need to pay cash.
That means, at 40hr/week per person, 168hr per week, they need 16 people to run this 4 lanes. Then another 2 to 3 people to cover for time off. Assume a low $50k per person/year, that's almost $1m per year.
What values do these toll collectors provide to society? The only reason why these jobs were created in the first place is because of the union. Don't you think money and manpower can spend on something better to serve the customers? Like repairing the road.