Factual error: After crashing headfirst into the water, the airplane is not damaged "correctly" at the end of the movie. The front shows little damage, when it should be crushed and the back has come apart, despite taking the least amount of impact from the hit.
Factual error: When the plane crashes into the water, both men in it should have flown towards the front of plane due to the sudden deceleration.
Factual error: When the jet crashes into the water, the amount of force would have just disintegrated the plane instead of having an intact body with wings attached that only had the rear ripped off.
Factual error: The Audi A8 that Frank drives is supposed to be an A8L Quattro W12, but the W12 has long, narrow almost flat exhaust pipes, whereas Frank's W12 had smaller round tailpipes, and is missing certain badging on the trunk lid, suggesting it is actually a lesser model, maybe a 4.2 V8 Quattro. (00:05:20)
Answer: The police will just get in the way and slow things down too much. Frank can operate outside of the law and get more done and get it done quicker. Plus, they can't just take Audrey's word for it.
TedStixon