Unsolicited Searching and Harassment

Today, I went to the Liqour City at Alex Mall to get myself a drink after a long day at work. After my purchase the security guard wanted to check my purchase on my till slip, which I comp**** to, as the was a sign by the informing me that this will be done. Things went south from there as the security guard wanted to search my laptop bag which I refused, as he has no right to search me without reason. When I tried to leave he pushed me back numerous times. The manager snuck behind me and opened my bag from behind without my permission or knowledge. He and his staff members continued to argue with me as a distraction to access my bag. I was held against my will, harassed and embarrassed for no reason at all.