There is enough history to say you can not extrapolate your local experience and apply it to others. I would wager @kaffine ’s car and road markings are more likely just fine than they are not.
There is plenty of evidence that regional differences cause Autopilot to work differently. Whether or not the reason is the Open Street Map mapping quality, subtle differences is road markings or the like (vs what the neural nets are trained on), geographical differences or even some differences in heuristics based on location, we don’t know, but the results are clear: there definitely are differences.
