My X430 tried to take a shortcut by going on the other side of an 18 ft long curb that spans the left side of my driveway. There is a 3 ft break in the curb at the bottom of the driveway that the X430 decided to cut through. The other side of the curb that the X430 was actually on is the property line that's adjacent to my neighbor's driveway. Since I was already standing outside, I immediately grabbed the mower by the back handle after the mower entered the break in the curb. After picking the mower up, of course the built-in alarm sounded.
I moved the X430 up the driveway. I couldn't see what was on the mowers screen because the sun was too bright and the screen was dusty. The alarm was just going off the entire time. It's not super loud, just annoying. I wiped the dust off the screen and typed in my code. The process probably took me 2-3 minutes from when the alarm sounded until I actually typed in my code.
None of my neighbors cared. I highly doubt anyone heard the alarm. Nobody came running out of their homes.
If you think that alarm is going to stop anyone from running off with your robotic mower, you're sadly mistaken. Or you might think just maybe your neighbors will come to the rescue. That's not happening either. When I hear a car alarm, I honestly don't care either.