Car Rental Charities

*** Not an OT Baller***

My nephew (2yr old) is having some specialty brain surgery done in Dallas Tx the first week of March. I have been tasked by my wife to find transportation for them while they are in Dallas (they live in Mississippi). They currently have a nice size mini van but that will be left with us due to how big it is and its ability to have three car seats (their two other children we are watching and my son).

I spoke with a buddy of mine who is with the Shriners, and he is checking that route. I dont really want something free...just want a discount for a car rental for a week or so.

Do of yall know of any idea for me to research? I dont mind doing the leg work, I just want to know what direction to go.