I have dislodged my share.
I mow the sides of the road with a boom mower.
Landowners hate me because I hit them all the time. I do not try too, when I do they wrap themselves up inside the drum of the flail mower. But they hate me because they have to get surveyors to reset them. I have had a few yell at me, but I just shrug my shoulders. I got an 6 foot mower, and make (3) passes off the shoulder of the road. The pin should be set at 33 feet from the center of the road, so with a 12 foot travel lane, and 18 feet of mowing, that is 30 feet, 3 feet shy of the right of way. As I tell them, they need a surveyor that knows where to pound in the pin.
To do it, pin/bound replacement it is not nearly as simple as knowing "where to pound in the pin".
Office research/calculations, two men, equipment, and accurate measurements, are usually required to determine exact boundary locations.
Not all roads are 66 feet wide. A few are greater, and in older less rural areas, many are only 40' layouts.
Most road surfaces are not exactly in the center of the road layout.
If a road surface is more than 3' off the center line of a 66' layout, a boundary marker could be properly located within your elected 30' mowing width.
If you destroyed my marker, or markers, and were mowing under a municipal contract,(informal or otherwise) I would be after the municipality to have the marker, or markers, replaced, by a licensed land surveyor, at their expense.( municipal contracted equipment damaged MY property!)
In the NE, boundary points are sometimes defined as a "DH".
"DH" is a drill hole in a rock.
For those who may think it is a good idea to vandalize boundary markers,....would you move a 10,000 lb rock?