Pathetic service

I normally go in the store every morning to get something to snack on before i got to work. I entered the store yesterday morning with my lunch bag, which contained my purse, cigarettes, badge and a lunchbox with a piece of cake. On the top of all these was my Reboost. I greeted the security at the door which I normally do. I grabbed a green packet of lays and a nosh chocolate. When I got to the till I pulled out my purse and paid for the items i purchased. When I get to the door at the exit, the lady asked me to open my bag (just like that) I placed my bag on the counter exposing all my personal stuff. She then asked where did I get my reboost from and very politely I rep**** I bought it from the tuck shop near where I live. At this point she called someone who i assumed was senior to her. He asked me to give him the reboost he needs to check it out. I had no problem but made it seem like i had scooped the drink. So i waited he took a few mins.... not sure how he checked, he came back and told me next time to show the guard at the door my receipt before entering. Now the problem i had was that he did the check he needed to do. Was he not suppose to came back and apologies for embarrassing me in from of every on and then say next time do this... The security's think they are shareholders and should treat customers with the utmost respect. I will never return to that store and i will inform everyone in my company of the pathetic service i received from the guards at jwayelani