Suppose a local law, passed 70 years ago, prohibits ‘vehicles in the park’. This is clearly intended to exclude cars, trucks and the like, but how would you decide whether it was intended to exclude...

Suppose a local law, passed 70 years ago, prohibits ‘vehicles in the park’. This is clearly intended to exclude cars, trucks and the like, but how would you decide whether it was intended to exclude the electrically powered vehicles now used by some disabled and elderly people (assuming the matter had not yet been decided anywhere)?