Not a lawyer. By the letter of the law, yes.
They had to jump the fence - presumably the gate was secured - in order to get to the house. Further, they walked around the property looking for the owner. This looks to anyone without more knowledge, very much like trespassing.
Just my 2 cents, I'm not trying to defend or accuse anyone.
The average Joe or Jane have no idea about ad blocking possibilities. They think ads are just the normal price you pay for surfing the web.
I have even shown people the difference between their browsing experience and mine, and still they can't be arsed to install an ad-blocker.
But then again, they use tiktok and Instagram and all the other brain-numbing shit out there.