Expect the Unexpected from Police Vehicles
I used to smile when I saw closely spaced traffic, a large gap, a police vehicle, another large gap and finally more closely spaced traffic. Everyone is afraid of the cop I thought. Having spent 25 years driving a marked police vehicle I recognize both that I rarely see this anymore and that it was a wise thing to do. Police vehicles often make unexpected starts, stops and turns.

The tow truck is a bit of an orphan when it comes to being an "official vehicle" as defined in our slow down, move over laws. Drivers happening across a tow truck working at the side of the highway must slow down and move over if possible just as they would for an overtaken police vehicle, fire apparatus or ambulance. The latter three types of vehicle are easily identified by the colour of their flashing lights but the tow truck blends in with all the other flashing yellow light equipped vehicles on our highways.
“Well, I thought that you were trying to catch that car ahead of me.” This is a common reply when drivers are stopped to explain why they didn’t pull over for the police vehicle trying to catch an obvious violator. The vehicle ahead of these drivers might be the object of the pursuit, but how is that driver to know?
Have you ever met or been overtaken by an emergency vehicle with lights flashing and sirens wailing when you were navigating a roundabout? What to do? Well, a roundabout is just another type of intersection, so you must immediately move out of it, stop and remain stopped until the emergency vehicle or vehicles pass by.
Here's an new angle on a continual problem, that of other road users failing to yield to emergency vehicles. Most of the time this question is asked about cars and trucks, but this fire department official asks the question about a different subset of traffic, cyclists.