Read this :
Are the Police still involved with parking issues?
Yes, the Police will retain responsibility for endorsable parking enforcement issues (points on your licence) including parking on pelican and zebra crossings, obstruction of the highway and school keep-clears.
If someone has parked and they are not on a waiting restriction but are obstructing a footpath, highway or access to your property only the Police can deal with this.
From
here then contact the community manager let her read it then suggest the next training course she goes on is one that teaches her about the LAW. Parking at the bottom of Rhyddings like you describe is obsructing the junction. The police have retained all their powers - they just dont want to use them.