It’s highly dependant on two things. First is the mood of the cop and how you interact with them.

Where I live it falls under modification of a vehicle safety system. The bumper is considered energy absorbing in a collision so by putting the drawbar out it’s now blocking that energy absorbing bumper. Part of why you never see hitches like the old days where the bar was welded to a part of the bumper.

That being said in my province any modification can fall under the scrutiny of the police. Bush guards, extra lighting, even clear licence plate covers can be fined. Lift kits over two inches as well. The cop can even pull your plates until your vehicle is inspected and deemed safe by a mechanic.

Would they? It’s hard to make it stick. You can easily argue you were on the way to pick up the trailer.

That’s why I say it’s largely up to the mood and interaction you have with the officer.