Is it just a crazy thought - but - could a Solar Trailer put out as much power as the average home 120V 'Trickle Charge' power cods system for a LEAF? (120V x 15 Amps). It might need some engineering but solar panels today are reaching 250 - 280 Watts per panel! That means about 6 of them would be about equal to that output!
Maybe EV Charging Spots could add one other feature - a Licence Plate Cam - since they are already usually networked - they could identify if the car is registered as Electric Powered or not, and if not - Snap a Pic - email it to the Cops with a note - "Illegally Parked Car - Please Issue Parking Ticket!" - Or just do like the groups do - posting pics of 'John's and their Cars if they are cruising the Red Light Districts - on a website. Call it 'Aliens Take over Clean Parking Places!'
Beyond that - has anyone seen or heard of an EV Easter Egg Hunt? The Eggs are hidden in places where there are EV Chargers, and they have to find the Easter egg - to access the Charger! Or - it could be a Poker Run, or a donut run, whatever suits!