This link below might shed some light for you. Essentially it is a protest against gov. and VIPs in Russia who have a blue flashing light affixed to their car, allowing them to traverse road rules at their own secretion.
It's alleged the use is being abused and putting other road users at risk.
rt.com/news/drivers-protest-flashing-lights/
It's alleged the use is being abused and putting other road users at risk.
rt.com/news/drivers-protest-flashing-lights/