Generally speaking, you can not pull out of a parking lot into on coming traffic. The on coming traffic most always will have the right away, regardless of your blinker!
It is your fault.
Backing up--it is your fault.
In general, the driver who is backing is considered to be at fault.
If you strike him - you are at fault. He can be charged with the No Parking violation but YOU are charged with the collision.
Usually their is no fault associated with parking lots. I'm sure your insurance company looks at it as your fault.
a normal fault
You are at fault.
Whomever caused the accident is generally considered the at fault party. It does not matter whether or not your in a parking lot.
A normal fault.
a normal fault
My fault
A normal fault would form.