I have a neighbour who does this.. they aren't elderly or disabled but every time she leaves for work she gets out the cones and puts them in "her" parking space.
It's just a road so it's not an owned space.
I find it so cringe worthy and entitled? I couldn't personally bring myself to do it.
Does anyone else's neighbour do this? I've never said anything because really it doesn't make much of a difference to me except occasionally when the road is full and I could potentially have parked closer to my house if her cones weren't in the way but it's not worth moving them and falling out over! But I do find it a bit ott.