Got it. Thank you.
Someone will email you back before Sunday, and they will be watching for you when you arrive. Nothing else is needed from you.
Sundays at 11:00 AM, 10401 I-10, San Antonio, TX 78230. About an hour. Come as you are.
Two ways in: the elevator entrance inside the parking garage, or the back entrance with the stairs and ramp. Either is fine, and someone will be outside to point you to the right one.
If something changes and you cannot make it, that is completely fine. No one will chase you.