[Neil]

But did they shut down the shop as soon as they investigated and found it that bad?

I have seen on these TV programmes where Council investigators tell them things are wrong and allow them to stay open. I think if they find anything wrong with the hygiene etc of food places they should be closed instantly and inspected 24 hours later to see if they have corrected the issue. The Council inspectors always appear to soft on the TV. I suspect they are even softer in real life when several million viewers are not watching them at work.