First, I'll apologize.
I don't completely understand what you're getting at,
so I might be a little (lot) off base here.
In your first line, I don't understand the idea of 'eating to build your hunger'.
When you say 'nervous system...illuminative', I think in terms of power grids,
so are you talking about building up electricity?
As for 'passing...cars', are you talking about actual, touchable human beings?
That line seems random to me, unless I'm misunderstanding how it's being used with the next line.
'the town's artificial vibrancy' just seems like a overzealous push to avoid using 'light', etc,
and for me 'town' doesn't have the same feeling as 'city'.
Also, anything 'sinking into skin' is pretty tired phrasing.
As a side note, I think there was some missed opportunity in not using more neon sign/lights/whatever based imagery.
(Or maybe that's just me desperately wanting that girl in the martini glass)
Or maybe I'm wrong, utterly wrong. ;'D
I'm interested to know exactly what you meant.