I think MOST is an exaggeration, it seems that more and more people are doing it themselves due to the user friendly interface of ESYS.
There may/may not be any people/shops in the Houston area that run a business, but there are plenty of options out there, including remote options.
I can understand that there are some who don't want to do this for themselves (regardless of how simple and straightforward it may be-purely opinion), but you make it seem like it is the end of the world. Also, I'm sure the OP had no problem finding someone in SoCal to code his car (as there are people/shops up and down SoCal). To have the auto start/stop coded would be a 5 minute procedure, that's why I suggested going back to the person that coded his vehicle to begin with.