I once had an Audi dealer remove the badge on the rear, it was a high powered 3L Quattro and I didn’t want the local yoofs knowing, but that wasn’t a Motability car. I purchased a replacement stick on badge for when I sold the car, but it was stolen before I sold it. There are a few valid reasons for removing the badges.
Apart from maybe this reason on a privately owned car WHY? I almost fell off my chair when I read this question, just imagine what the press would make of it :-). In some ways it was funny, while browsing the forum I went from someone who is struggling greatly to find a car big enough for their various mobility equipment to this question! Oh well I guess we all have our own priorities.