Collated replies
Sadly on that stretch there isn't much choice other than parking under 120+ year old trees (I have worried about our own house on occasion.)
The falling beer is an absolute tragedy and could only be be made worse if it had been a quality coffee beans that were dropped on the uncaring road.
It's been confirmed that the driver received nothing other than scratches on his paintwork and the road was cleared within 90 minutes (I should extract the footage and create a timelapse video of that) and the neighbours and drivers were helpful to each other.
The footage has been getting repeated on the BBC national news every 20 minutes so perhaps we should start keeping an eye out for Meraki footage in the media, as it would be nice to know when our favoured products do something useful.