the fuckers have cameras and "AI" detection here, if it looks and sees something it doesn't think is a banana the whole thing stops and signals a staff over. doing groceries is seriously more fucked than going through airport security now.
There is a DVR product called SaleGuard that can detect this from existing or integrated camera systems. It tends to work fairly well.
I mean, they're not gonna nab you for apples unless they get enough of a rolling tally on what you took to actually prosecute usually. That's what most corps do.