Time to evacuate

[CD]

...FAA conducted a certification trial where the first XX passengers out the door got a bucketload of cash... to falsely create a 'panic'...

You're likely thinking not of certification trials, but rather evacuation studies that include a monetary motivation.

The FAA Civil Aerospace Medical Institute conducted a study involving egress through Type III exits:

Access-To-Egress I: Interactive Effects of Factors That Control the Emergency Evacuation of Naïve Passengers Through the Transport Airplane Type-III Overwing Exit

Cranfield University in the UK has also conducted evaucation studies using this method:

Aircraft Cabin Simulators

Duke of Kent Opens World's Largest Aircraft Evcatuion Cabin Simulator