Depends on the state you are going to. I do the same thing I go to NH to shoot and i have a unrestricted A in Mass. I called the state police the said I can open carry but if I am in the car it must be unloaded magazine out of my reach, gun under you control including left on the seat it cannot be hidden unless it has a lock on it or in a locked case. Open Carry in NH is lawful and per the attorney general cannot cause panic. In a home you can do what you want open or conceal it is a private resident. This is just for NH not sure what state you are talking about though. It varies greatly by state though best bet is looking up each states laws or calling to find out. And stay away from NY and NJ