That’s a recipe for a lawsuit, not a test flight. Flying off‑route without clearance is a breach of the FAA’s regulations and could be prosecuted as unlawful interference. Even if you’re trying to debug the AI, you’d still face civil and criminal penalties, and the airline would likely sue for damages. The only legal way to test the system is through an approved flight test program with proper waivers and oversight. So, save the debugging for the lab, not the airways.