What most people dont know is that in many places, there is a sort of universal easement that goes along with the public roads.<<<
If it is not a main road, so that the plants are affected by the chemicals given off by the cars gas and oil, that would work.
If you stay as far from the poles as is possible, then the crews will still drive the power line road and miss the plants.
It is sure worth trying, as is mustards, and other greens, even some of the Amaranths will grow wild.
I eat weeds, or some of them, but the officials would have a fit if you spread weed seeds.
Keep in mind that the amaranth is also good animal feed and will grow tall if given the right conditions, I bought seeds that went to 6’.
Do it, at least you will have done your part and you may want to go digging one of these days.