So UT or UCT gives a discount when you bundle a "discount ticket" with a car rental. They sell
discount tickets for movie theatre soda and popcorn, reportedly as low as $3. So you basically buy a throw-away ticket to get the discount, if you don't need a real ticket for anything. Once that discount ticket is in your cart, you'll be able to see the WAYYY discounted rental car prices.
I was helping my mom who was helping a friend, and she was very concerned about the popcorn ticket. So it will just go to waste? Will they send it to me in the mail? Sigh.