Addison Lee drivers told to defy bus lane law (and to just say SMIDSY)

Aside from the request to boycott, I also suggest making it visible.

As in... every cyclist should go and rate their iPhone/Android/Windows Phone apps 1-star with messages telling them why:

iPhone: http://itunes.apple.com/gb/app/addison-lee/id365882551?mt=8

Android: https://play.google.com/store/apps/details?id=com.haulmont.shamrock.android

Windows Phone: http://www.windowsphone.com/en-GB/apps/a79c8037-ca9c-4c9d-ba53-e8ddda0695e5

With the number of reviews they have, LFGSS alone should be able to destroy their app ratings.

Done.
They're not trending on twitter yet. More tweets!

And apparently they'd love to hear from us:
http://www.addisonlee.com/support/enquiries#Other