"Van accessible" is O.K. where I'm from. Anyone with a handicapped placard or handicapped license plate can park there whether they have a van or a car. However, if it says Handicapped parking "Van Only" then you cannot. I also know that someone was ticketed when they parked a car in that spot even with the placard, etc.

As far as that show goes, I have seen it before. Not really impressed with it so I do not watch it that often. However, last night I made a special effort to watch that segment. I would guess that sometimes the carts are abused by people who do not need them. But I would never question them. You really can't tell what might be wrong with those people.