The following lodges are meeting the week you are in San Antonio. The one's I would suggest from past experience are Alber Pike and Victory. Contact information can be found at:
http://www.grandlodgeoftexas.org/lodgelocator
Lonnie Irvin Daylight Masonic Lodge #1309 - Saturday at 1:30
Blue Bonnet Masonic Lodge #1219 - Monday Night at 7:30
Community Masonic Lodge #1201 - Monday Night at 7:30
Patterson Masonic Lodge #1177 - Monday Night at 7:00
Prospect Hill Masonic Lodge #1247 - Monday Night at 7:00
Albert Pike Masonic Lodge #1169 - Tuesday Night at 7:00 ***
Army Masonic Lodge #1105 - Tuesday Night at 7:00
Valley-Hi Masonic Lodge #1407 - Tuesday Night at 7:00
Victory Masonic Lodge #1160 - Tuesday Night at 7:00 ***
San Antonio Masonic Lodge #1079 - Tuesday at 7:30
Alamo Masonic Lodge #44 - Wednesday Night at 7:00
Highland Hills Masonic Lodge #1373 - Thursday at 7:30
BTW, both of the ones I have recommended (***) meet in the Scottish Rite building.