Businesses still seem to be struggling with thinking through how to manage EV-equipped parking spaces. They're fixated on time limits, when much of the time time limits are inappropriate and often downright counterproductive. I wonder if some of this dates back to when some of these chargers were free, and they wanted to limit people taking advantage of this?
Assuming they're charging enough to make some profit on electricity sales, what is the point of these chargers standing idle all night, when they could be in use and making money? What is the point of forcing customers to cut short whatever it is they're doing and come back to their car and stop buying your product (electricity), if there's nobody else waiting?
If there are people waiting, hey, their product is really popular, better install more outlets!
Ideally, and we should get there in the end, a sufficient proportion of car parking spaces everywhere will be equipped with charging capability so that anyone who wants to charge their car while parked will be able to do so. You'll pay for the parking in the normal way (if applicable) and you'll pay for the electricity, and operators will be happy to let you stay there because there are enough EV-equipped spaces to go round, and it's a car park, not a charging station.
Of course, even if everyone owned an EV, only a proportion of spaces need to be EV-equipped, because people who charge at home aren't going to want to pay over the odds in a car park as a rule. But people who can't charge at home will be pleased to make use of the facility, and will bring their custom to the main business.
But businesses like Tesco (and others who really should know better) are still fixated on time limits and overstay fines on type 2 chargers, rather than working out how many of these chargers they need to install to keep their customers happy and keep them coming to patronise the business.
That clubcard idea to allow overnight parking is brilliant, and there will be other similar ideas, and I really don't know what they're paying their marketing people for if they're not coming up with a lot of these.