It is fair enough to start the suspension at midnight so that residents can move their cars well before the pantechnicon arrives at 7am so it has the necessary room to park but why oh why oh why suspend the bay until 1 minute to midnight? by which time the removals van will be long gone, and in this case it was done by lunch time.
What the council should do is give the residents of the property the authority to remove the suspension signs once the van leaves and this would achieve the double objective of giving the van the necessary space and not inconvenience other residents for longer than absolutely necessary. Mr Mustard wouldn't of course suggest getting your cutters out, removing redundant suspension signs and put council employees out of a job.
This suggestion will not be taken up by Barnet Council.