Since I don't know exactly where he lives, I can't say. I thought it was the Houston area. Ask him, or more properly his Nana, but she can be reached at his FReep mail.
If his area is in any hazard, expect Eaker, Humblegunner, Flyer, et. al. to get his folks and his Nana out of there.
If they can't then expect TC to come flying back from his sick bed in California, in a rented dualy, to pull them out. :)
I'm even a little concerned for Miss Victoria (my granddaughter, although oceanperch knows that) who lives in Austin. The 11 PM EDT forecast showed Rita still a tropical storm as it will pass near or over Austin. Now it's stronger than it was then. More concerned for her Aunt B and Uncle M though, the live in a sort of low area and in a not so sturdy looking duplex.
Assuming his folks can't get themselves out, which they should be able to do. OTOH, they may be near San Antonio, and should be fine if they stay away from the myriad low water crossings. (Many San Antonio streets don't bother with culverts or bridges, they just let the water flow over the road, and it can be deceptively deep. They have no storm sewers to speak of, and very few storm drains.