Amtrak did run an Evacuation Train organized by BNSF, Greyhound and Amtrak. BNSF CEO/PRESIDENT Matt Rose wouldn't let the train leave until every seat was full which they were. From BNSF.com
Hurricane Rita Evacuees Ride Train on BNSF Railway
Thursday September 22, 8:05 pm ET
FORT WORTH, Texas, Sept. 22 /PRNewswire-FirstCall/ -- A special Trinity Railway Express (TRE) passenger train with about 450 evacuees from the Houston area is operating over BNSF Railway trackage from Houston via Teague to Dallas Union Station.
The train, consisting of two TRE locomotives and six passenger cars, is being operated by a TRE crew provided by Herzog Transit Services Inc. The train left Houston at about 3 p.m. today. It is expected to stop at about 8 p.m. at 208 S. Third Street in Teague, where passengers will be provided with meals and water.
The train will then continue to Dallas Union Station, 401 S. Houston St., where it is expected to arrive about midnight. Amtrak will keep Union Station open until the train arrives and will provide personnel to direct passengers upon their arrival.