Don't be dumb all your life.
It means the boys in brown put their top notch gumshoes on it and after about a week they were able to identify who they were and that they'd both fucked off (on separate flights, which probably means they had a spectacular pissed one night shag on a sewage pipe).
Otherwise they would have been parading them in front of the press grovelling some pre-written apology about offending Thai culture and paying Bt500 each while promising not to do it again.