Feature Request: Vehicle Griefer Protection On Game Start

In almost every conquest match I've played today, I've seen friendly vehicles, especially aircraft being destroyed by a friendly at spawn. Denying the team the use of the vehicle. This is either down to someone being salty they can't get the vehicle they want, or it's genuine griefer behavior. 

My proposed solutions:

• Friendly vehicles are immune at spawn for 35 seconds, or
• Friendly vehicles are immune at spawn until a player enters the vehicle, or
• Friendly vehicles are immune at spawn until a friendly player enters the vehicle and it moves from it's initial position.