Typically, it isn t the roads that are the problem but often the shoulders. In places there isn t enough room to pull off of the road, or where you can there may be a sharp drop off the pavement. The chance that you may have to stop quickly, even during daylight is very high. So it is best to travel during the day when visibility is best. Rest Areas Are not organized by the state.
Gas stations are always a safe place to stop and take a nap if needed.
You will receive a small amount of tissue for your donation. Your donation helps the owner pay for the water, which is costly in the desert. There are clean well-equipped public restrooms at each toll plaza on Hwy 15 with adequate parking for RVs. Fuel Mexican gasoline and diesel from Pemex are high quality. They are equipped with a few parts, never any for an RV, but they have powerful radios and will arrange for help.