I have read that while there is little violent crime, there is a great deal of petty crime. Such as, never leave anything valuable in your car, even at a National Park parking lot.
I understand that crime is everywhere; my wife's car was broken into in a YMCA parking lot. Is it like that, or worse? I mean, it is hard to driving from hotel to hotel and stop places without having your luggage in the car.
I don't want to be paranoid, but I even less want to lose my luggage.