I forgot to mention that the points on US 15 Bus at the MD Line, US 15 (South Junction), PA 134 and PA 394(W) are slightly off-center as well for some reason. It is not really noticeable just looking at the overall file but very noticeable when zoomed in. Also maybe add a point at Baltimore St since it directly connects to the US 15 freeway where it becomes PA 97 which eventually becomes MD 97.
Also I was really annoyed when I found out that US 15 Bus actually did end past the southern US 15 junction (though I was able to take care of that). I recently found out that this same thing happened to me with MD 3 BUS (an unplanned trip due to roadwork on I-97) a month ago since it goes past I-97 (though on GSV it did not seem that it was posted south of I-97).
-Mark