Answer
The pilot should consider the operational collision risk and choose a time, route, altitude, or location that keeps well clear of approaching aircraft. Being outside a legal boundary does not remove the need to avoid crewed traffic.
Explanation
Airspace legality and collision avoidance are related but not identical. A location can be outside a formal restriction and still be a poor place to fly because of predictable low aircraft activity. The safe plan uses both the rule boundary and the actual traffic picture.