This evening I rode home via my local supermarket. It's in a small arcade & has a security guard on duty til midnight. He doesn't mind if I bring my bike inside the arcade. He'll usually give me a smile or some sort of greeting. I can go into the supermarket, confident my bike will be there when I get back.
This evening, my back wheel was rubbing against the brakes. After a closer look, the wheels not quite "true". He gave me some help adjusting the brakes so the wheel would run smoother & it'll be easier to walk it up the hill home. ( I'll take it to my LBS tomorrow to get it adjusted).
So my vote for best night parking is: Dee Why Arcade (Sydney)