1. Yes, stay under 3k RPM and it's fine, also accelerate normally.
2. It definitely sounds exotic, but that's the point right? I've never heard a ferrari in person so I can't say.
3. You can only hear the exhaust in the car, with music on, if you are really ripping it.
It's really not that bad. Listen to those vids again and see how loud the background is. Passing cars, birds, the wind, etc. Then you can kind of gauge how loud it really is. If you drive the car normally you will easily be under decibel laws. I was worried about this too, but I can say it's not as bad as the videos make it out to be. It can be at very high RPM's, but most of the time it isn't. I live on a street with a daycare center and drive real slow passed there. They haven't complained yet. In fact, most of my neighbors compliment my car. Just drive cool where you live and it'll be fine