Would you try to tell them not to buy the $9/gal gas and ride out the storm? Ha!
If I was talking to someone in line at Publix and they said they were going to the $9 per gallon place to fill up, I would absolutely tell them "F that gouger", the two places down the street are at regular $3.29 prices..."
Of course he is free to still go pay $9, nobody is taking away his right to overpay... But why *wouldn't* I point out the cheaper gas stations?