Kinda depends on the ground at the time as to how the car will roll out. Usually no problems until the back tires are off the ramp and then sometimes I'll have to give it a push.

However, mostly by that time the door is clear enough that you could unhook and drive out the rest of the way.

If you go by yourself mostly I would recommend either a long lead on the winch remote or a wireless remote you can be where ever you need to to control the car while pulling it in.