If it flashed, then you're ok. Gatsos can and do flash you if you're heading towards them, but they're not approved to 'catch' you head on. Truvelo cameras can get you from the front but they're infra red, so don't flash.

Cossie4i - Of course it makes a difference. Have you never driven at 3am? Speeding when there are loads of cars and people about is blatantly more dangerous than when the roads are deserted. Do you really believe that 36mph at 3am is as dangerous as the same speed at 8.30am???