Really? Its the first time I see it, and I do frequently watch live streams of people driving around in the USA, so I have seen the bill boards at gas stations. Prices used to be a bit over $3 last year, if I remember correctly. Like I said, that was extremly cheap compared to German prices.
And I rather not think of what could happen in the next 25 month.... My advice: hold on to you metals! Don't put too much trust into cryptos - it could happen that the internet gets fucked up in cyber warfare, and than cryptos are useless. And stock pile at least some food and stuff that can got you through a time of standstill. At least 2 month if possible. And make a plan how to defend yourself, if the public order breaks down.