Yeah, I think that’s what they’re trying to show here. Unless you think a reverse-image of something symmetrical is going to look substantially different?
Of course, you aren’t always nabbed by an officer behind you, anyway. Sure, that’s where they are when they’re pulling you over, but by that time you’ve already (allegedly, until proven guilty) committed your offense, during which an officer could have been to the front or side of you. I think this helpful guide could be used to ID potential problematic vehicles on any side of you, provided you can see the shape of the headlights. Ideally, a chart showing the most common wheel coverings and key features to be on the lookout for would be even more beneficial. (Extra antennae, the aforementioned blacked-out sections in grilles, beacon searchlights under the driver window, etc.)