@roger,
If you do a quick google - you see lots of upset people and articles about how rental companies are using this cashless tolls to their advantage and tacking on these fees. Some even went on to say just notice how these tolls are conveniently near airports - meaning that the poor unsuspecting tourists arrive at the airport get their car rental and right from the beginning they are subject to these fees.
Any way I called to see - and the woman told me that all car rentals are doing this. I said do you not see that a 20 fee to process one toll is a bit too high and unreasonable? I am more than willing to pay a reasonable fee but this is crazy. She said if I just used it once at one toll they would waive all the other day fees and just charge me the one use fee amount. But just this one time. It wouldn't matter whether I use the e-Toll or just drive through (or at least she wasn't 100% certain).
I think I might look to go a no toll route and then look to get a transformer of my own so I don't have to deal with this crap.
This is what is written:
If you use our e-Toll, you will be billed the full amount plus a $2.95 service charge for each rental day, including days when you do not use eToll, but not to exceed $19.75. There is no direct reference to if you just drive through and don't use the e-Toll - in the past I always just pay cash but I know this one toll I planned on going through changed to a cashless system so you don't have the option.
It is a good thing I do read things thoroughly - in what I had been reading it appears that they try to hide this fee in the fine print.