Might be easier to just paint the loiterable zone a different color, maybe with little bullseyes for the widest, driest spots to plant your butt. Not these metal markers that might trip somebody.
In a few years there'll be tiny, stinging drones to police this, we just have to figure out what to do until then.
In a few years there'll be tiny, stinging drones to police this, we just have to figure out what to do until then.