In-N-Out raises California prices of Double-Double after minimum wage law USA TODAYIn-N-Out raises California prices in response to minimum wage hike Fox BusinessEverybody Calm Down, In-N-Out’s Double-Double Isn’t That Much More Expensive Eater LAIn-N-Out exec blames California for menu price hikes – Food SFGATECalifornia’s $20 fast food wage is hurting business, data shows Business Insider