I envy the teenagers of the future. They are going to have such wonderful targets of vandalism and destruction. However, it will make sad when Google adds defense mechanisms to the robots and skynet goes live.
Yes and if it gets stumped it could alert a remote operator who could take over and figure out what to do. They don't have to handle every corner case if they have an escape hatch like that.
This will open up all types of theft. Camera on the robot? No problem, that mask and spray paint will clear that problem right up. Not to mention all the kids who will definitely be pushing this over for fun....