Battery camera for an open garage ramp? Need to avoid recording the street (strict EU laws)

Hey guys, need some quick advice. I want to put a camera on my garage ramp, but I live in Spain and our privacy laws are crazy strict. If your camera records the public street or sidewalk at all, you can get slapped with massive fines.

My garage is basically an open archway with a ramp going down (not posting a pic for privacy, just imagine an open tunnel). There's no gate or fence at the street level. I don't have power outlets there either, so it definitely has to be a battery-powered model.

I need a camera that sends me alerts ONLY when someone actually steps onto my ramp, and I need to completely block out or ignore the street to stay legal and avoid spam notifications from people walking by.

Any ideas on the best way to mount it (maybe pointing straight down from the ceiling or facing inwards?) and what brands have the best "privacy masking" and AI activity zones for this? I was looking at Eufy or Tapo but I'm totally open to suggestions. Thanks!