See the tab labled "Travel"
Teresa,
I don't know the particulars of where you are planning to pick up your car and return it, but I did a quick look at the car rental services we provide (use the "Travel" tab found on every page of the main RTA site) or go to www.roadtripamerica.com/travel.htm). I entered parameters of 15 days, a premium car, a pick-up and return in LA, and unlimited miles and found five national providers offering cars ranging from $425 to $800 for the period. Any of the top 6 or 7 national carriers provide towing and/or repair services.
We are in the midst of re-tooling our travel services, to make them more easier to use, but the booking service works fine as is. Although Dollar was one of the five who dealers found in my search, they were 3rd most expensive of the group. Did you try our services?