You seem to think pharmacists are not liable for an error made by a technician. Obviously different BOP's are going to react differently, but I would be willing to bet that every state requires the pharmacist on duty to be responsible for everything every tech does while they are on duty. Many states go as far as setting tech to pharmacist ratios, and this is why - so the pharmacist can reasonably be expected to supervise what every tech is doing at all times.
OP, for what it is worth I used to have this issue at CVS. I would train my techs to follow the prompts on the register and as soon as I stopped looking over their shoulder they would go back to overriding or otherwise getting around the prompts. I doubt you will get in serious trouble and I suggest taking it as a learning experience - in the future if you see pickup techs going to a computer terminal ask yourself why are they doing that - are they going to scan the script to get the DOB so they can skip asking the patient? If you catch it, send the tech home and tell them it will be termination next time. You can also retrain your techs about the need to follow proper pick up procedure. I bet if you are honest with yourself, you knew that the techs weren't following proper procedure (do you ever hear them ask for DOB?) and were just letting it slide. Sadly that behavior now has you in some hot water. Just take it as a learning experience and move on.
Oh and hope that the patient doesn't get pregnant. You don't want to be liable for child support for the next 18 years. Also I hope you have insurance, they will help you if it does end up as a legal battle.
Keep us informed, it is always nice to get updates for how these things turn out.