To get the tolls, there must be toll takers - people who are willing to stand there all day and harass travelers for money. Well, I know I've personally given thousands to these people over the years. Now I feel duped after reading this article. Seems that the FDOT has made a fortune with their relatively new program of 'detaining' people who pay with larger bills. This is all part of the system to bring in a digital currency. This is an interesting story, a good read and news video to check out when one has time.
Story link:
http://www.wtsp.com/news/mostpop/story.aspx?storyid=178322&provider=top