Yes, generally you want the chargers to be somewhere where you can go spend 30 minutes doing something else. So you put them near grocery stores, or coffee shop

Yes, generally you want the chargers to be somewhere where you can go spend 30 minutes doing something else. So you put them near grocery stores, or coffee shops, or a mall. Gas stations are typically not located within walking distance of any kind of retail. They are set off a ways because they are nasty, smelly business. No one hangs out at a gas station, you run into the convenience store for maybe 60 seconds, and hate it every second you're there. I would assume gas stations also have a fairly low electrical draw, so not likely to be located near transmission lines. Versus a mall or major retail outlet probably already has decent transmission capacity to make adding an additional few MWs for charging a lot easier.