Common Law dictates that a persons or common property may not be altered by another party without due process, except when in imminent danger to persons or public safety.
The law does not protect personal property,like an rv, it does protect persons and public safety.
Damage to real property from hazards to personal property is a tort issue, as well as the reverse, damage to personal from real property .
Trees, all features living or dead are the property of the landowner thus protected by law as property and within the rights of the landowner to dictate treatment of all features on that real property.
When that property is held out to the public for fee or service, there shall be an expectation that it is reasonably free of danger to persons or public safety.
An offending branch does not qualify as a danger, is property. Do not cut it without permission. To alter anothers real property without permission is a crime without proving it is an immminent danger to persons or public safety.