You'd have noticed a double flash, trust me, back in September last year I'd driven down to see my folks before our sons christening, and low and behold they'd changed the road layout, so there are two sets of traffic lights, a set to look at and a set to stop at, I stopped at the original set, only after I'd had a double flash, rain, dark night, driving on autopilot, not a great combination, £60 and a scribble back on my rather washed bit of paper that still gets called a drivers licence :blush: The KFC was nice though :laugh:
As for the comment on the police, travelling to work a few years ago, early morning off to milk cows, I drove up the A52 and had to use a right traffic lighted filter lane, same time every day they'd be a traffic cop travelling the opposite direction and instead of stopping he'd flash his blue light and travel on through his red light, turn it off as soon as he was through, had a few near misses, road rules and laws are there for everyone, whether or not it's a white car with a pretty blue light on or not, I actually put in a complaint about it, and never saw the police car travel at the same time as me since the complaint!
If it's dark, you could always try flashing your headlights on your approach, and if you slow it down you may find they'll change before you have to stop, doesn't work on all sets though, and don't do it if cars are approaching the other way! :grinning: