pinman

i was caught the other day, early morning when i was late for work. there are roadworks on the dual carriageway and the limit was 40, so me doing 80 made me think i was screwed<what are the chances of getting caught at this time> lol. so the copper overtook me(didn't see him in mirrors) and pulled me in then went through the usual balls but then issued a warning for excessive speed. he was on his own which made me think can a lone copper issue a speeding ticket? was it a change of shift so he couldn't be arsed to do the paperwork(caught 5.30am). did he not have video evidence? i would of thouhgt a copper would throw the book at someone being that stupid. any ideas how i got away with it?