I hate to say it, but Pete is probably right. Recently we have seen an increase in firefighters being fired at as they arrived on scene of working fires.

The other issues is, if you are far enough up that you need a laser flare to signal firefighters on the ground... you are probably so high up in the building you will likely not be able to open a window and rescue from that height would be near impossible from the exterior. You best bet is to get to a stairwell and start heading down if the stairwell is clear.