OK, most newer town lighting has power junction boxes somewhere along the street. In QLD, they are a grass-green colour, roughly rectangular and about half a metre tall. Ours is right over the road.
I sold a Maksutov to an Energex worker once. He told me he had the skeleton key to the box and COULD turn the major protagonist off. Shame he didn't.
Also, some streetlights work on a photoelectric sensor - when dark enough, they switch on the lights.I know of people who have made up a LONG pole with a coffee can on the end with an LED light inside. Cover the sensor with the can, which is illuminated inside, and VOILA - it thinks it is day.
My big problem, beside the incandescent street light directly opposite my viewing area is 6 mercury vapour street lights. THEY cast a bloody awful gradient in pictures.