[Aerkuld]

I like to make a point of going slower in situations like this. Just make it really obvious that you're not playing. Try to be as slow as you can away from the lights, cruise carefully up to the speed limit and stay there, follow the car in front 10 yards back, if they sit on your arse move as far over as you can to give them room to pass, etc.
Sure, they'll pass you as soon as they can but so what? Let them go and give them their moment of 'glory', not everyone can overtake a 20 year old car.