Here is a link to someone who removes bees in San Antonio.
http://www.adkinsbeeremoval.com/san-antonio.php
I know that you are at the coast, but, they may be able / willing to guide you or refer you.
If they are honey bees and there is a local beekeeper, they will likely remove the bees for free.
I also read ablut Africanized bees in your area. Here is that information.
If you're trying to get rid of bees and you live in the middle and upper areas of the United States, it's not as difficult to find a beekeeper that will remove bees for free, as long as the beekeeper is close by and the bees are easily accessible. If you're trying to get rid of bees in California, Arizona, Nevada, Texas, or Florida (counties with Africanized Bees) chances are no one will collect your bees for free. Select this map for a larger view of the africanized honeybee (AHB) movement, included is a brief history of honeybee removal in the US. In addition, if you're trying to get rid of bees in the structure of your walls, attic, roof, or chimney, it may also be difficult to find someone who will collect them for free because of the difficulties involved.If you're trying to get rid of bees and you live in the middle and upper areas of the United States, it's not as difficult to find a beekeeper that will remove bees for free, as long as the beekeeper is close by and the bees are easily accessible. If you're trying to get rid of bees in California, Arizona, Nevada, Texas, or Florida (counties with Africanized Bees) chances are no one will collect your bees for free. Select this map for a larger view of the africanized honeybee (AHB) movement, included is a brief history of honeybee removal in the US. In addition, if you're trying to get rid of bees in the structure of your walls, attic, roof, or chimney, it may also be difficult to find someone who will collect them for free because of the difficulties involved.
That came from
This Site.
I also read (I cannot remember exactly where, I have looked at probably 20 sites this AM) that you might be able to rent a bee smoker that would calm the bees while they are removed. I also read that if they are Honey bees, you will need to open the eves and get out the honey as it can melt and run.
Prior research indicated that if the Queen can somehow be removed, everyone else will follow.
Not much information, I hope that it helps a bit.