 price of a gallon of gas at $3.50. Drivers in California, though, continue to see the highest price at $4.78 on average, although in some counties it's as high as $5 or $6. The cheapest gas in the nation can be found in Mississippi at $2.99 a gallon. And in an odd twist, Justin Timberlake's mugshot from his recent DWI arrest is becoming a work of art in the Hamptons where he was busted last month. I'm Lisa Carton.