We, among many others over the last week, waited in a tremendously long line at Thrifty, but they did have cars. I would suggest that people who rent ensure that they are able to the 'walk to the garage' option rather than wait in line, whatever that entails b/c the lines were long for everyone, but exceptionally long for Thrifty.
They also for reasons I did not understand, could not process our credit card, despite it being the one we pre-paid with on the website (we had to run it again for the damage deposit). Initially they clerk insisted it was our card/CHase but Chase insisted that no charges or attempted charges were recorded via Thrifty. It turned out it was their readers, or that reader? In any case, she was able to 'go in back' and get it work? It still makes not sense and with that 20 minute mess added on, we'd waited 2 hours for our car.