Will never go to that store again and will not take this laying down

I just had the worse experience in PEP store (Southdale) I walked in to the store,after coming from Shoprite where I bought my babies food.then get followed around the store get to the till where the teller tells the manager I put the baby food in my bag.and no one is asking me about it all the staff are having a big talk about it,I get to the door where the guard is then he and the manager stops me to say I must take the ****** food out my bag they just sawe on the camera,when I did give them the slip for the food all I got was a sorry.o find this highly unprofessional.