Sorry Brother about that you deserve better
This is odd. I remember not too long ago a sign that referenced "A tribute to Heroes" and made mention of the discount. Hardee's corporation publicly states a 10% discount that does not differ from location to location. If there is truly a discrepancy, and the location is still under the same ownership, then I am not surprised. He did not have the best reputation.
Thanks! Your answer is awaiting moderation.