nettynan As far as I know, you have the right to park according to the rules of the Highway Code, in any road because it is public property and she does not own the road. However, for the sake of your peace of mind, I would avoid her. I had slashed tyres in an outer London Borough where I worked, apparently I was offending the person outside whose house I parked, but there was no "designated parking" sign so I was within the law. I also once found a very rude letter on my windscreen in a wide quiet residential road where I parked and the house holder assumed I had gone to the Park opposite. People are very selfish and have grand ideas about their rights to their little kingdoms. Even though they are not entitled to remove you from a public road, I would avoid such people as they usually are immune to logic or reason and can become aggressive and dangerous.
Sorry that you had to meet one of these people. They are a minority but they have a strong effect on us. I've been bullied by one-such recently who was doing something under the guise of his own self styled Christian charity, and over-stepped his brief into trying to run my life in a threatening and totally inappropriate way. He has retired and misses the authority he had in his office where he used to bully and brag and pompously strut around pestering people self-importantly. As a disabled widow with a house with maintenance needs, he saw me as an easy target.
Good luck! ?