In serious racing leagues and servers normally a human-controlled manual safety car works just as well. You have the human factor - allowing lapped cars to pass, pacing, staying out longer if for example a DC-ed driver still hasn't reconnected , plus, no bugs.
A bot safety car is just too fiddley, especiallt for a pick-up and play simulator like LFS. Too much can go wrong. And when it does, theres nothing to prevent it from happening again besides a ban - and then your league will get smaller and smaller.
Just no, really.