omaharj,
It is really not that complicated. I called the ISP about 3 years ago as there was a course I wanted to attend. I was put through to a SGT who was VERY helpful and thorough. Also, sent me their "official" brochure. As has been stated, firearm unloaded, locked and separated from ammunition. Keep in mind they got to have a reason to search your vehicle, etc in the first place.
Now, Chi-Town is a different story......