Great story! I love the image of the huge airships looming over the city. A lot of my stories in my "Fahrenheit 52" project have been extended versions of dreams. Whenever I have a particularly weird one, I try to tap it out quickly on my phone, even if it's the middle of the night.
Reminds me of a short story I wrote which is a transcription of a vivid dream I had: http://www.tlalexander.com/spooks/