EV clamped for no tax

[untakenname]

Noticed today a Nissan Leaf (I think) which was clamped for having no tax, I was under the impression that it was a zero rate vehicle and thus was exempt?

[untakenname]

Oh, didn't realise you need to even if it's zero pounds, the cars owners must of not either.

It's bit harsh clamping it then if it's simply an admin thing, will probably cost them quite a bit to release it.

At first I thought it may have been clamped for parking too close to the junction or ignoring a no parking sign for roadworks taking place.

Took a pic earlier in the day