I can't answer for you or anyone else, but I can tell you what I've done. I became a member of [Pre-paid legal service] because my first concern is to get hold of an attorney ASAP when needed. As a member, I have a card with a 1-800 number (for members) that will be answered 24/7. That card is always with me and that number is also on speed dial in my cell phone.
I think there are other similar groups, but these folks are just a couple of miles away from where I live and they seem to be pretty knowledgeable on gun issues/laws. I hope I never have to find out!
Phill
PS - on the back of the membership card is a set of instructions to any law enforcement officer regarding questioning.