The story is pure fiction - no names, no date, no location and not new. The facts in the story make no sense - cops arrive 10 minutes later and the crook is still there!!
In Victoria (similar in other States) it is an offence to fail to stop a vehicle when signalled by a police officer. This includes if you knew or ought to have known. Signal to stop among other things includes emergency lights being operated, siren or horn of a vehicle. Serious penalties.
If you are unsure, you still must and should stop, ask the officer to show identification, and or ring 112 or 000 if you wish, but don't act on foolish advice or unfounded e-mails.
Read the Road Safety Act 1986 (Vic) Section 64A to confirm.
This link should work.
http://www.legislation.vic.gov.au/Do...86-127a123.pdf
Rod