wears his former employer's uniform and badge to attempt to pass through a flight crew security line
Pushing his luck a bit, I'd say.
In the 1980s, I had tea without biscuits with Abdul for passengering into BAH on my employer's aircraft (GF) and wearing uniform to pass through crew security.
Some prat dobbed me in.
At least I was currently employed by the local outfit and living in Bahrain.