Once the race has finished, a lot of the controllers are deployed by the traffic police. This would explain why you did not find so many controllers situated around the camping areas.
We got back to BSJ about an hour and a half after the finish last year and the Chief Blackshirts were paying off the rest of them in hard cash before they all disappeared!
The site was completely unguarded from about 7 pm.
'This definitely explains why we did not find so many controllers situated around the camping area'There were whole bands of 'ill-intentioned' people roaming around all evening. They even had a couple of 7 ton flatbeds!