I wish I could rent a parking space for $40 per month. I would ask the owner if I could build a little shed to take up the whole space. If I got approval I would just move in. I could tote water to the place and get a tiny generator for electricity if it were an indoor parking space. If it were an outdoor space I'd get solar panels and put them on the roof.
If they didn't allow the shed then I could purchase a work van and live in the big box. Of course I could do that now on the streets but I'd have to move it all the time. With my own rented space I could stay as long as the rent was paid.