Frankly, I think you will struggle because you drive in the bus lane for a considerable distance. Why didn't you just turn into a space of the open carriageway. It does have all the hallmarks of somebody not wanting to tootle along in the open lane with the other traffic, but speed things up by using the bus lane. Tell me I'm wrong, but that is what is looks like !!
Also, can you call TfL and ask for the video of the incident. This puts a 2 week freeze into the process, and also a recent case was won at LondonTribunals because the appellant said he had no means of viewing the DVD before attending the hearing as no modern PCs have DVD readers anymore. TfL are in age of the Ark, I'm afraid, but now it has come back to bit them, at last !