So there is a limited access, four lane expressway that I drive to and from work everyday. Although the speed limit is 55 mph, traffic typically moves at 65 or more.
If I engage autopilot, for most of the drive, I will be limited to a maximum speed of 60 mph. If I try to increase the speed on autopilot, I will get a message that says "Autosteer Speed Restricted." Then, after several miles (always in the exact same spot), I will be allowed to increase the speed on autosteer to a maximum of 65 mph. The posted speed limit is still 55.
If I'm going in the other direction, starting from where I'm allowed to keep the autopilot at 65, when I reach the same spot the car will slow down to 60 fairly abruptly. It is clear that there is some sort of arbitrary geofencing software that limits your ability to set the speed, but I'm not sure why. It's actually not very safe to be driving 5 or 10 mph slower that all of the traffic around you.
I'm posting this because I'm wondering if others encounter similar situations in their daily commutes. If I'm driving on an interstate highway, I can set the autopilot speed at pretty much whatever I want, so I don't understand why certain sections of the same road, with the same posted speed limits, would have arbitrary limits to the allowed autosteer speed.