Very easy to answer the pharmacy they bust has dispensed the drugs in violation of Title 21. Therefore you do not have a valid prescription, they have full unfeathered access at that point. Also even suspicion of such activity by a pharmacy makes it legal for them to review medical records. It's right in the HIPPA act. No warrant is needed the pharmacy has already broken the law by dispensing the medications you as the recipiant are a party no warrant is needed only the warrant for the pharmacy.
Take care. Billylll