Keep it civil, keep a record

Say the hard thing once, on paper, without starting a war.

A polite, specific notice about noise, property lines, pets, or parking — the kind you can later show a mediator or the police.

Conversations in the driveway go nowhere. You need a dated record that you asked, calmly, before anyone else gets involved.

A neighborly letter with the behavior, the times, and a reasonable request.