We do apologize for the confusion on this matter. After speaking directly with Member Services, it does seem that this discount only pertains to USAA employees, not members. Again, we apologize for any confusion this may have caused. Thank you all for commenting in Community.
We are pleased to introduce a unique page that offers USAA members exclusive discounts to the La Cantera Resort and Spa. The discounts fluctuate depending on time of year and are exclusive to USAA members only. The website is https://www.destinationhotels.com/la-cantera-resort-and-spa/usaa-offers.