Ignore while riding, report afterwards. Your report would probably require corroboration by a marshal to have any effect, but even without getting the dick disqualified you might persuade the event secretary to offer words of advice. There are large numbers of noobs in TTs who are utterly clueless about the regs, and he may not even know he was cheating. If he was a triathlenger, he may have thought 5 metres was acceptable, as that's about the size if the exclusion box for non-drafting age-groupers.
Ignore while riding, report afterwards. Your report would probably require corroboration by a marshal to have any effect, but even without getting the dick disqualified you might persuade the event secretary to offer words of advice. There are large numbers of noobs in TTs who are utterly clueless about the regs, and he may not even know he was cheating. If he was a triathlenger, he may have thought 5 metres was acceptable, as that's about the size if the exclusion box for non-drafting age-groupers.