HOA Karen & Husband get mad after being asked not to trespass or leave signs on my property

HOA board member trespassed and placed an illegal sign. I don't want trouble with the city so I remove the first sign.

The next morning there's a new sign even further into my yard, along with a nasty note saying not to remove & ominously signed "A Board Member", and there's a guy in a Toyota suspiciously glaring at me from across the street who speeds off the moment I remove the second sign.

I go back to my day but the Toyota man keeps aggressively driving past my house so I decide to take their stupid sign back and attempt to explain why I had to remove it, only to have them freak out on me as I walk away (hard to hear but Toyota Guy says "its not your property" as I turn around). He even tries to 'sneak' up on me when I was talking as though he was going to get physical, lol.

Their reasoning seems to be that others are obligated to track down trespassers and politely invite them to remove their own illegal sign from my property at their leisure and anything short of that is "unacceptable" .... even though that's literally what I was doing, and you know, they trespassed and don't have a leg to stand on here. Typical entitled boomers.