Has anyone successfully used park assist? I've tried on several occasions to use it to perpendicular park and it hasn't worked. It will identify the open spot but then only gives me the option to parallel park. It lists perpendicular park but I can't select it. I let it try to park just to see what would happen and it started to back up into another car so I aborted. I haven't yet tried to use it to parallel park. I also was unable to use "park out" to pull out of the parking spot. Any pointers?