I would be doomed if any store monitored my facial expressions, especially to determine suspicious behavior. And the stores would have a hard time if they tried to monitor my facial expressions to use in neuromarketing, so we'd be even.
I'm just thinking of some well-paid marketing consult focused on me having reviewed countless closed circuit videos and asking, "What's wrong?"
Though this time I'm just liable to say in my monotone voice, "This isn't an autism-friendly environment!"