re: can I keep a loaded handgun in my vehicle?

In Louisiana you can conceal it, have it out, whatever. If I remember correctly from my CCW class, you can actually have it concealed ON you, but as soon as you were asked to step out of the car, it would be illegal without a permit. The laws for your vehicle are pretty much the same as if you were in your house. I would always inform a police officer if you have a gun. They really don't care if you aren't doing anything else illegal.