While I on the whole agree, there are some cases where its unavoidable. You could be coming home late from work, and you can't power nap in the car park there

While I on the whole agree, there are some cases where its unavoidable. You could be coming home late from work, and you can't power nap in the car park there as the lock the gates, so you need to drive to a location where its safe to park and nap. Its admittedly an edge case, but its not unlikely by any stretch of the imagination.