Yes its too late and dark to be rooting about with water meters, and your water board is more likely to have supplied the meter, they are built in their thousands and stored, even then if a particular water authority wanted the most current years meters they were often pulled from stock and re-serial numbered.
It's the kent name on the meter that makes me wonder if it is a very old meter or even a refurb.
But whatever the date of the meter I know that the internals would be affected by ice in the water and that is more than likely where the problem lies. The water has to pass through a plastic chamber within the meter that has a revolving part that spins inside the plastic chamber with the water pressure, hence turning the gears on the top of the meter and giving you the unit reading - if any ice gets to the filter on the front of the chamber it will temporarily stop the flow and clog the meter.
Just my opinion of course as I am no plumber - I just used to get all the components to Slovakia so they could assemble the meter so I know what's in them

Darren