giving way to emergency vehicles
A driver must not move into the path of an approaching police or emergency vehicle displaying a flashing blue or red light (whether or not it is also displaying other lights) or sounding an alarm. If you are in the path of a vehicle like this, you must move out of its path as soon as you can do so safely, despite any other Road Rules.
it is ok- you did the right thing; In this suitation, all the vehicles must wait in the intersection until the emergency vichels pass even the traffic lights are green, and that is the RTA say and what I saw here-very good. Because it is emergency maybe relevant to other' life.
suggestion: you should act as earlier as posibile next time- Left signal and Move to your left immediately-the vehicles in the left lane definitely will give way to you if they see your left signals.