I quite enjoyed (if that's the right word) that movie - even if it was a bit "art" for me. I think I understand how you feel in this world for the first and final sections - and assuming I undesrtood correctly, then you've done a good job communicating.
Unfortunately I didn't get the message in the car park scene. Maybe I'm just dense.
I liked the low tech way in which it was filmed - although I'd have liked some of the images to have been alittle clearer (brighter).
I'll let you know my interpretation (so you can judge whether I was correct) when others have had a chance to comment.