The picture below shows a car parked almost completely across the pavement. This would not currently classed as obstruction by our council or the local police because no one is actually being obstructed at this very moment and would use the fact that the woman seen walking away from us with her shopping was able to get past (just) as evidence for the lack of obstruction.
The fact that an elderly person who uses a wheelchair lives a few doors down is considered irrelevant because he is not trying to pass at this moment. The fact that the person may not even bother trying to get down the pavement any more because they knows that it is impossible is not considered relevant. To add insult to injury, if someone passing the vehicle accidentally scratched the vehicle with a bag, buggy or wheelchair then they would have caused an offense against the owner of the car!
The only reason that it might be classed as obstruction in this case is because the person may have had to have ‘trespass’ onto private property to get past. A police officer I have just been talking to about this thought that this would indeed be evidence of obstruction.