On Wed, 16 Dec 2020 14:23:32 +0000, Tim Lamb
wrote:

snip

Sorry, I simply don't believe every van running its engine when parked up
like this has a good reason to do so.

Try tapping on the window and asking?

Maybe not when they are also parked diagonally across disabled spaces.
It's pretty obvious who they care about. [1]

I have noticed the same phenomenon
at Hatfield Tesco but assumed they were running aircon or heater. Tool
charging does make sense.

It would if it was but still not really a good justification IMHO.

Cheers, T i m

[1] Mrs to her Mum to the hospital because the screws in the frame on
her broken arm were coming lose. One of the few blue badge spaces was
occupied by a couple of lads in a van and seeing no blue badge, the
Mrs asked them if they were leaving. They started being abusive so she
walked over to the Police car that was waiting by an ambulance ... and
for some reason the van then drove off. ;-)