The bill you're referring to doesn't say anything about places of business, just vehicles and "temporary lodging". It doesn't add immunity from civil liability (it was already there, see page 4, line 5, note that "civil liability" isn't in capital letters). The only "other things" I can find is that it adds stuff about how the presumption of reasonable fear isn't there if the person against whom you use lethal force is allowed to be there, or is retrieving a child and other such minutiae (page 3, lines 10 through 24).Castle doctrine would extend the make my day law to cover your car, rv, motel room, place of buisiness. And would clearly define self defense and that if you're not charged with criminal charges you won't be sued in civil court. among other things.