My apologies. It was Alamo rent a car. As a side note, (and this may be discussed in another part of the forum), there's no way to pay when you use a toll highway in DFW area. I mistakenly forgot to turn off at the last exit before the toll began. I got off at the very first toll based exit. I looked up online how I can pay, and came across some posts via Google that described how there was a lot of fees by the company that tracks down the toll fare from the car rental company. I tried calling the toll highway service number, and gave the rep the license plate of the car that I used. Due to database upgrades they were doing (which, surprisingly, lasted multiple days), they weren't able to do any plate searches until July 14th. The rep I spoke to could not find the plate number of the car I used, and said that it either it didn't get billed, or was already billed so she couldn't tell me any specifics, which seemed pretty lame. I ended up being billed via the rental car company almost a month later, for almost 8 bucks, which I doubt is anywhere near what I actually paid had I been a TX toll pass owner.