When not using cruise control and passing a speed limit restriction, cars will brake to the set maximum speed but continue to loose momentum after that, as if the W key was not pressed anymore, even after passing a speed limit derestriction.
When pressing any key, for example A or D, the car will start accelerating again, even ignoring the previous speed limit restriction.
The server wide speed limit works though, maybe you can use that implementation instead?

Thanks for your report, i will look into this.

Ok, the issue is caused by the sign scanning routine that sometimes will trigger the cruise control brake even if cruise control is inactive. I'm working on a fix and hope to release it this weekend.

Fixed :)

well the speed signs now only work if cruise control is activated
i think the only possible solution was to periodically set the current speed via script to simulate braking and to force the speed limit

Please correct me if i'm wrong, but do you want to use speed limit signs without the need of an activated cruise control? Of course it'ld still be possible to separate speed sign detection and processing from cruise control entirely.
It's just that keeping a given speed limit and automated braking (after passing a sign) are two integral components of cruise control. Therefore i combined these functions.