New scam unlocked today at petrol pump !!

So today i went to petrol pump for petrol and then got the air checked.

Few people who had put stalls (car polish, scratch remover). One of the guy came to me and said “sir kitne scratch pade hai gaadi mei , ek demo dedu aapko scratch removal ka free hai ek dum “ .And he rubbed my car trying to show that he is trying to remove the dust on it..

I said no i dont need since its a one month old car.

I came to office and saw minor scratches where he wiped off the dust while asking me to do a free demo.

I think he had a ring in his hand.

After reaching office i called the 100 dial number and explained them the scam they are doing.

They told me once you come from office and show us the person( there were 7 of them).

Should i go back to the petrol pump after office hours and call the police and get their stall removed ? Or should i get it buffed on the service centre as its a very small scratch and can be easily buffed out.

What would have you done in such scenarios. I want to teach those guys a lesson