CVS Prescription Stolen Dunedin, Florida

I want to know how she/they did it (beat the camera's).  I went to the drive thru CVS pharm. in Dunedin, FL. on curlew and US hwy 19 N. Dropped off two script's for oxycodone 30 mg. and a muscle relaxer, and was told it would be ready in an hour.  When I returned to the store I was told I didn't drop off a prescription for oxycodone and that the muscle relaxer was ready to be picked up. and also by the way  the tech had left for the day,  I went inside the store and called the police ,who when  came treated me as I was the criminal.  I was told they reviewed the cameras and that there was no theft.  Also, the district manager was notified who in term told me the same.  I am not crazy I know where and what I dropped off to the pharmacy.  Can someone who know's the inside's and out's of these tech's stealing prescriptions tell me how the camera was beat. Thank you Again!