It’s a standard joke or maybe urban legend that people in emergency vehicles switch on their sirens and lights to beat the traffic and get home in time for dinner; a perk of the job.
I recall this impression vividly from a very exciting trip to Moscow earlier in the year, that there were an inordinate number of “emergency” vehicles demanding high-speed passage and even jumping the lights at will – traffic was already scary enough and gridlocked with both sheer volume and the number of accidents – at junctions.
More than an impression apparently.