At home I strapped my gun in a way that was comfortable and buckled in my car to see how it would appear. The waist and shoulder strap happen to come together right where my gun sits and covers all but the nose and butt of the gun. ARS 13-3102.G says:
Subsection A, paragraph 2 of this section shall not apply to a weapon or weapons carried in a case, holster, scabbard, pack or luggage that is carried within a means of transportation or within a storage compartment, map pocket, trunk or glove compartment of a means of transportation.
Based on the language here carrying on my hip in a vehicle is perfectly legal, but the seatbelt does partially conceal the weapon and it may not appear to be "clearly visible" as required by Arizona law -- I am a little skeptical as to how it would be interpreted. Since this IS Arizona and most people have no problems with OC, I suspect few people would have a problem with it. The new laws currently being debated in Phoenix (mentioned in my first post) would remove doubt as to how carrying in this fashion would be interpreted by law.
I would prefer to OC in this fashion and not have to remove my weapon every time I get in the car. That is why I am trying to make sure that this is clear. Sure, a CCW would make this problem go away all together, but that would be "giving up too easily" to government regs and if these new laws are passed a CCW would only be really needed for restaurant carry (with alcohol) and reciprocity.