When I use a free camera (using Camera class, not DayZPlayerCameraBase) while in a car and try to get back in vanilla DayZPlayerCameraBase the player is stuck in the car and the DayZPlayerCameraBase seems to be at the default player camera, not the default car camera (as the player was outiside the vehicle). The player still can control the car but can't open the door and get out of it.
Here is a video showing the problem: https://youtu.be/84xhhxrfkcw