Since installing 17.24.28, I've noticed that the +5mph limit that I used to only see on undivided roads is being applied on a small section of a large divided freeway.
For those familiar with the Bay Area, it's the section I-80 just east of the second span of the bay bridge while traveling east. In the other direction, there is the bay bridge's toll plaza, so that may be why the speed is limited to 5mph over the speed limit, but it doesn't make any sense in the east-bound direction (especially that everyone else goes at least 70mph in a 50mph zone and my AP1 is now limiting me to 55mph...)