Revolution March - Need a bit of help

Hi Austin Meet-up!
I am a Ron Paul supporter living in Wichita Falls. I have reserved a seat on the Austin RonVoy to DC leaving July 9th. Austin is the closest location to Wichita Falls to catch the van. I am running into a bit of a problem in that I don't have any place to park my car during the trip. I don't know anyone in Austin. Like I said we are leaving on the 9th and will probably return on the 15th. If you have any ideas or are willing to offer some driveway space or a spot in front of your house I would really appreciate any help you can offer. Thanks so much for your time!
Stephanie