It's a merge in turn. Merge in turns work well if that's what people do instead of blocking each other's way. This van driver had a choice of remaining on the roundabout blocking it up or moving into the empty lane there.
A merge in turn works like a funnel to get traffic through a junction from different directions and down a road efficiently in the same way it's been proven putting a bollard in front of a doorway so people approach it from the sides and merge into one line gets people through faster than them approaching it in one line straight on.
They think you're too close.. why not ask you to move? Oh wait, was it because you weren't actually that close and their ego couldn't stand being in the wrong? If you're over the lines then it's their fault.. I'd ask the store if security footage is available. Hmm, leaving the scene of what amounts to an accident(?) Maybe look into that too. You know, what if someone battered their door? Some bad people about after all..and they too, might claim they were "too close". Not that I'm advocating such behaviour :)) ;)
Been stuck behind this driver a few times now. Irish plate by the looks of it.
10-15mph under the limit every bloody time whether anyone is in front or not.
Lovely gentleman let my carer cross in his wheelchair on busy road, even tho the lights were green