Got home Tuesday evening (7/4/17) from an almost 7,000, 16 day cross country trip. San Diego to IN/OH, then down to GA/FL, then home. Jax FL west on I-10 to Baton Rouge LA, then NW up through Shreveport LA to I-20 to Dalles TX, north to OK City to I-40 west to Flagstaff AZ, then south to Phoenix AZ, further south to Gila Bend AZ and I-8 west to San Diego. Lots of Supercharger stops driving through the night. Next trip (mid-August to Rock Springs WY) I will bring one of those hospital urine bottles. Twice I had to use the bushes. My wife waited until we were charged so I could find an open gas station for her. Once, in Macon GA Supercharger, we walked around and around at about 5am Sunday morning looking for something open. We finally found a local resident who was working early and he pointed us down a street with an open gas station about 1/2 mile away. I was not sure I could make it but we did. That turned out to be a long stop with lots of charge, more than we needed to get to the next Supercharger at Tifton GA.
The point being: Food and Drink we can take with us on a trip, a toilet we can not. We did not see a single trash can at any Supercharger stop. At local businesses, yes, but not at the supercharger. Again, we can carry our own trash elsewhere, not a toilet.
Just saying....