They way I understand it is the family of the intruder/car jacker/bad guy that you shot (if you were in danger of bodily harm, sexual abuse or death) can't sue you in civil court. I think you no longer are required to "Flee" first as well.
That is not entirely accurate. You can protect yourself in the event of a car jacking, but you still cannot shoot just because he is walking out your front door with your blu ray player or backing out of your garage in your truck. Now if you were to stand behind said truck, demand that he stop, and he accelerates towards you, shoot to stop the threat, you are now in danger.
Establishments may still place signs noting no weapons allowed and you must follow those rules, therefore if the company has a no weapon policy, you must follow it.
That was in the initial bill, but that part did not pass. Employees at places of education still may not keep their weapon in their cars as the parking lot is still the campus. But yes, most other restricted areas that you cannot carry into, you may leave it locked in your car.
