The cab of Sunny Grewal’s 18-wheeler is neat and tidy. He’s got bunk beds with red checkered sheets and gray interior cabinets that hide a fridge, microwave, paper plates and spices for long days on the road. One plastic container holds bite-sized sweets from his native India. “We call it gur, G-U-R,” Grewal says. “You can put it in tea, or you can have a small piece after food.” Grewal is a trucking company owner-operator based in Fresno. He’s on the road upwards of 150,000 miles a year,