as a commenter on the site noted, it’s already legal for a permit holder to have a gun if they stay in the car.
But if, for some reason, you have to exit your car or go into the building, you would have to take the gun off the property before you could do so.
Everyone should read the comments at the bottom of the article. The intelligence from opposing views presents and incredible contrast. And some of the comments are so ridiculous as to provide some comic relief.