This isn't the first time I've had to answer one of Jennyjoan's posts by referring to the difference between 'general' and 'specific' legislation:
In London there's 'specific' legislation, meaning that parking "with one or more wheels on any part of an urban road other than a carriageway (footway parking)" can result in a 'Code 62' Penalty Charge Notice being issued, requiring payment of £110 (or of £55 if paid within 14 days). It's a civil matter, not a criminal one. (i.e. it's a legally enforceable 'bill' and not a 'fine').
There's no similar 'specific' legislation elsewhere in the country although there might be in the future:
https://www.bbc.co.uk/news/uk-politics-49635176
However it's a
criminal offence "if a person, without lawful authority or excuse, in any way wilfully obstructs the free passage along a highway". [Section 137, Highways Act 1980]. So, under that 'general' legislation, a driver who (say) prevents a wheelchair user from being able to manoeuvre along a footpath risks a fine of up to £1000.