Yes As long as they do no damage to it and put it back, it is legal. Per U.C.C.
No but that does not mean they won't do either. A repo man cannot legally move another vehicle out of the way, but if he can get the car just by driving across the grass, then legally he can and probably will do so.
Have one person driving another person taking the picture.
Yes. If the person repossessing the car finds it then they can take it!
Repossess your own car? What did you do, meet your wife at a family reunion?
It's more the same as repossessing a car.
Yes, pay your payments on time.
Towing driver.
If they are repossessing the vehicle for the bank, Yes.
Yes. There is not much point in repossessing a car for only a part of the day!
Yes
Unless you have a lien on the car, you have no rights as far as repossessing the vehicle goes. If you send a repo agency - even as a joke - and they collect the car while you have no legal claim to it - then both you and the repo agent have committed theft.
general rule NO, but check with your state to be sure