Answer
The pilot should verify whether the flight is inside controlled airspace and obtain the required airspace authorization before launch. If authorization is not available for the intended time, altitude, and location, the flight should be moved, delayed, or cancelled.
Explanation
Low altitude and a quiet site do not remove the airspace requirement. Controlled airspace is managed because crewed aircraft may be arriving, departing, or operating under air traffic control. The safe decision is to treat authorization as a preflight requirement, not as an optional administrative step.