Also, I wouldn't say everything Polvo does is out of tune sounding. "Shapes" is pretty straightforward rocking and even references Hendrix on one song. "Exploding Drawing" as well.
I don't think some notes on a guitar could qualify as noise, it's not even really distorted, just badly-recorded.
"Noise pop" to me is early Pavement, some early Thinking Fellers, early Swirlies (especially "Pancake")..
Also, I wouldn't call tapping on the hood of a car noise unless it was really arhythmic and random. Even then it may not sound like noise. Noise has a clearly defined and, um, "unmusical" sound to it.
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