Thought I'd post in this thread because it seemed relevant. If old.
Anyway I'm in Addison at the moment, I drove here from DFW (635?) and despite setting both my GPS and Waze to avoid toll roads, I am sure I went on a couple. I heard the rental company (National) will ding me a $15 fee for handling each one, so I wanted to know if there's an easy way to pay online. I found a site informing on Zip Pass but I believe I needed this before renting.
I also found a site to enable me to pay by plate but I entered my license and got nothing.
https://www.paytexastoll.com/QuickPaySelect.aspx
Anyone help or offer advice?