Now that we are aware of this happening, esp for newbies like me, course of action / game plan:-

1) Do not show rude finger signs in the 1st place; and
2) In the event of any threats, do not react, stay calm and note down all details - number of stars on uniform, license plate number, description, etc.

There is one more but shan't say.. Ta!

/Btw, I generally believe in full and frank disclosures and transparency. For the avoidance of doubt, the unwritten No. 3 above is NOT "bribe the officials."

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Life is short. Live it to the fullest!