Anyone ever pull up next to you for gas and offer something?

A person from Dubai in a nice Porsche, distressed sounding woman pulled up near me near a gas station.

Offered some necklace saying "please it's my most expensive, can you just help with gas" While some dude was driving.

It was very odd to me as to why they can't pawn that necklace and buy gas for the Porsche..

I'm just saying is this some scam I need to be aware of, or did I just lose respect from a Dubai person by declining free jewelry in exchange for gas?