Yes I have a 3ds, but I'm waiting for the OoT remake, it'll be amazing

Yes speed cameras are used at night sometimes, but not as often cos they need to be attended otherwise they'd get vandalised (I got done by one so I know

And do you mean can you get a ticket for 1km/h over? I don't think so, I'm pretty sure legally they have to allow for about 3km/h error on cameras, meaning you have to be doing 74 (maybe 73) in a 70 to get a fine.
However than doesn't mean if the camera says you're doing 80 you get a fine for 77...
Did you get flashed again? Remember our speedos are all slightly fast too.