There may be no speed limit on some roads but there is still the law of reckless driving as stated in the article. Having a 500m stop distance is not considered reasonable and the Bugatti driver will face charges for reckless driving.
A French Mann doing 250 kmh in 2009 had to pay 70k.
A Sweede was also caught and the fine was estimated over a million but I don't know if it was ever paid.
https://www.blick.ch/schweiz/249-km-h-von-seat-bolzer-noch-l...
https://www.blick.ch/schweiz/bern/mit-290-km-h-auf-der-autob...
It’s pretty easy to get banned from driving.