I guess, like most, I'm 26 years deep into a motoring model that has my car a stones throw from my house. Parking elsewhere and walking sounds like a massive inconvenience but I guess making that trip twice a week isn't too bad.It'll leave him no worse off than public charging at his local rapid hub, other than having to do a couple of short top ups per week instead of sticking it on the drive for a 100% charge once a week. So down in time, not money.
As for unique, I'd bet there are loads of people who could do it if they wanted/needed to, just thinking outside the box really.
IOG sounds like a poor idea if only charging once a week though. 6 days of bumped up cost and one day of non optimised reduced rates (I doubt she will be blasting through the weeks washing while the car is charging) means you would have to be very committed to that salary sacrifice tax saving.
, as our heating is by oil and on 24/7.