Sorry, I misunderstood you. I don’t think it would be a problem, since you’re out of city limits and the area is not over populated. But again, if police ask you about it, having a license could help you a lot.
They only come if some of your nervous neighbors file complain. If by the law of your state registration is required and you don’t have one, they can confiscate the gun and you’ll be fined as well. On the contrary, the presence of license may affect their decision. I think, from state to sate the decision may vary.
Note: If you did something wrong and caused real danger to people around you, the license will be of no help for you. Safety is always a must.