They can't take you to jail over noise ordinance. I would've laughed at that bitch. You might get a fat ticket but you won't get hemmed up over some subs.
My overall favorite brand is DC, because bass is my favorite part of a sound setup and my favorite bass instrument is the DC audio sub! Rusty provides the best customer service in the business IMO, and you can't beat the quality of his products.
All it does is dim your head unit when you opt to (Illumination wire). You don't need to use them, just match the wires up and don't use the rest. You'll be fine.
Press the eject button and slide the CD under the one that is in there. Try it back and forth and continue to press eject, if that doesn't work then try the knife thing.