If you bought it in 2011, there is a sales tax deduction on your federal return. If the car was bought in 2012 it will not be available unless congress extends it. The deduction is available to taxpayers that itemize. In most cases itemizers have a real property interest deduction that makes it worthwhile.
What if they download kiddie porn on your computer mixed with the other stream, especially over time and threaten to turn you in if you stop. You computer will have a long duration record of all sorts of stuff making you look very guilty. When you click, you don't always know what you will get.
If you have a chance, go and look at the army, navy & air force courts of appeals websites. They convict people very often where it is discovered on their computers. Not just government...
If you two didn't give consent, this is the wildest search I've heard of. A traffic stop and then a home search with no warrant?
And just because you don't know how your gun "got there" doesn't mean its not necessarily your gun. You might have forgotten.
You need to hire an attorney who will press a 4th amendment suppression action.
You should be worried because there is no guarantee that you can establish lack of knowing possession. Your "friend" has put the weight of this on you. Some of the things your hired local attorney (get one) will do is:
1. convince the DA of the facts and circumstances surrounding the backpack and to drop any charges pending.
2. Convince the DA (perhaps with your testimony if the facts establish this) that your "friend" and not you, is the person the DA should be persuing.
Why don't you hire a lawyer, then show up with your lawyer and have him begin pressing to dismiss. By coming in alone, with no ability to negotiate with the DA, no demand for charges, it may appear as if you (and your absent lawyer) don't believe in your case or are so guilty that you are just hoping it goes away.
Look at this from the judge's angle. Tomorrow, your attorney tells the judge that it should be noted for the record that you are there, and ask that your bail be dropped and...
Restitution has a number of features.
1. It is not technical in terms of the hearing and the standards for evidence are relaxed.
2. Typically most restitution actions are done at or near the trial of the underlying action and many defense attorneys prepare for restitution by preparing some of the facts in their case, such as "who is involved" and "what is the real damage". -- Yours coming so late, you will have to hire a criminal defense attorney or a civil attorney to do the reasearch...