Those who park on ev charge points overly long and even blocked by some ICE cars do that too are being scummy you know, just like the non disability drivers who park in disabled spots.
The numbers who overstay should be going down as the amount of charging points that start charging a premium after 60/90 mins is starting to increase. It will be cheaper to charge for 30-60 mins than leave your car for 3 hrs and do some shopping without paying parking fees.
When I get my car it will be a quick 30/40 min charge and off to let the next person have access rather than hog it for the next person who wants to use it.