Officially just beta stuff, easy on the marketing 
The engineering team has confirmed that this issue is caused by the Car detection feature. Normally, Yarbo will avoid Cars. You may choose to disable the Car detection feature if you want to clean around cars, but please note that this may increase the risk of collisions. The engineering team will work on improving this feature in future updates.
At least now you know.
This is why I have car detection turned OFF on my Yarbo. As long as my wife and kids park in the designated spots, there won’t be any problems. 
Good luck with that. 
I struggle with her sometimes parking in the grass in the summer 
Yep. We all know how this story is likely to end! lol
If anyone knows a 2 for 1 discount on some model Y’s or can get me access to the robovan pre-release that would be a great solution.