I finally tried the new CalTrans Rest Area that has free charging in Willows on this weekends road trip. Very nice. I used to stop at Maxwell and like you said, too close, although since I am leaving town on a whim it's nice that I can leave with 60% full and still get there, like the Westly rest area going south.
On the way home I stopped at the Maxwell one, so I could be 22 miles closer to full when I got home, but the site is down. Even the phone number to call shown on the face of the machine has been disconnected. Such is the state of charging non-Tesla EVs in America.