Rats. (re text not note).
I'd reply
"Hi Neighbour, not sure why you felt the need to knock on my door again, as my car was nowhere near being in your way, & I don't need your parking advice.
While we're on the subject it's time to state clearly that your constant micromanaging of my every movement feels intrusive to the point of harassment.
I do not appreciate your constant messages & petty demands, none of which are rational or normal. I've lived next to 4 sets of different neighbours at (her street number) & not one of them ever had a noise problem from me, so I'm unsure why you are claiming the perfectly legal & ordinary noise levels of me opening doors & walking around in my property are a problem to you.
I gave you my number in good faith as a neighbourly act, but your constant criticism of me & interference in my private movements has become OTT, & it needs to stop now. I will therefore be blocking you on my phone, & do not expect to hear from you at all, unless you have a genuine emergency.
Saffron (street number)."
Harsh - but she will keep treating you like she thinks you're a walkover until you out-dominance display her, & all of it is factual, measured, & admissible in any legal terms should she keep being batshit instead of backing off.
My take on her is that she's a bully who thinks she's found some fresh meat, so the note above will nix that notion. You then GREY ROCK THE FUCK OUT OF HER in every encounter. "As you're aware, I'm not interested in listening to your assessment of my daily life, so I'll let you crack on, have a good day, bye."
(This is a little more assertive than standard Grey Rock, but I suspect necessary with her - you cannot afford to give her a single hint of "appeasement", as she will see it as an opportunity for power play.)
What you need to take from this is - you don't owe this twat anything.
Not your time, not your attention, not your anxiety, not tiptoeing around, & certainly not politeness. The bitch is deliberately baiting you - she can see her little barbs sink in, so you need to demonstrate that she can no longer 'touch' you with them, they simply won't sink in any more.
Breezy, uninterested self-assurance is your go-to demeanor with her from now on. Fake it til you make it - it gets easier each time.
And listen up to the PP who advised you to keep records - document, document, document.
I suspect the worst you'll have to deal with if you send the message above is performative huffiness, which you can ignore, while she sets her sights on somebody easier to bully.