Thing to remember here guys (not with standing the legality issues) is the unpredictable reaction drivers seem to have to a flashing blue light. Some of my scariest moments, either driving (on blues) or as a cyclist have been because drivers have paniced on seeing blue lights / hearing sirens etc. Everything from jaming on the anchors to swerving out of the way, without looking. It may seem great, your filtering down the middle of the road, everybody getting out of the way. It just takes one numpty to swerve out of your way and hit another cyclist or pedestrian and you could be facing time sat in a very small room with no prospect of riding for a few years! Not to mention indirectly causing the death or serious injury of another road user.
Emergency response drivers, through training and experience understand and anticipate the moves....you will NOT!