In a perfect world there should be no need to 'Flash the|Badge' at the end of the day why are you doing it ? Is it because you have done something wrong or because you want to do something that you should not be doing. Lets take an example of parking a car.
If you have parked your car in a no parrking area and a police officer is making out a ticket and you flash your badge what are you doing
1. Asking the officer to treat you differently to their expected norm
2. Asking the officer to pervert the course of justice
3. You are attempting to perverting the course of justice
Is it worth it. Better not to commit the offence in the first place or if you have just pay the fine.
On the other hand if you want to park in an area restricted and ask permission for whatever reason and you are granted permission is this different if you have used your Badge to get the permission ?
What about speeding ?
Free Drinks?
Discount?