I mean you could just embed those things that they attach to clothes and alcohol bottles at the store to sound a brief alarm when someone tries to cross a thres

I mean you could just embed those things that they attach to clothes and alcohol bottles at the store to sound a brief alarm when someone tries to cross a threshold with it, then have staff only stop people when the alarm goes off, otherwise foot traffic can flow freely while people dump their sacks in bins like they do with glasses after 3D movies.