If it was a private secure carpark, I wonder if you could set up a tent there? Take showers at a nearby gym and use a pocket WiFi to stay online. But I guess cooking and electricity would be an issue though.

I know in my apartment building there's a clause that you can only store vehicles in the parking spots. They just recently threatened to fine everyone for storing their winter tires there (within the lines of their own spot, mind).

Don't think this really fits here tbh. This is a parking spot being sold from a condo, which is common in dense cities in Canada and this is a pretty standard price.