You dont need a permit to hold boobs.
Around here, only permit you need is one for a concealed weapon which if you have one in your vehicle, just lay it in the passenger seat if you get pulled over and you're good to go.
I don't know if that is what the actual law says, but you get away with it by doing that. I hear people shooting daily here, it's usually someone either hunting out of season (which they never get caught), or just target practicing for the hell of it.