Illinois + Wisconsin where the 2nd amendment goes to die
Transport is not an issue with out of state visitors.
If you are stopped and the LEO asks if you have weapons or drugs, say yes, I have a rifle in the trunk, open it, let them see it, let them run serial numbers to see if it is stolen, let them drop it if they are careless, then put it back in the case and drive away. This is not a battle you wish to fight as an out of state visitor, IMHO
The 2/3 majority to pass is actually going to need a super majority, which is guaranteed not to happen because of the liberal faction in the State of Chicago. There really are two separate land masses in Illinois -- Chicago, and the prairie lands of Illinois....home to some hellacious white tail bucks. The bottom 4/5's of the state is rural and residential, the majority of crap is in the Chicago corner. The real part of the state is "normal" pro-gun folks having to suffer through the liberalism leaking out of Chicago my $.02
Dave