Crossing the line in Auton

This is probably a really stupid question, but here goes. Is it illegal to purposely cross the line in Auton?

Yes.
As per rule <SG3>,

Read the game manual! It saves you time and worry for things like these.

It is illegal to cross the line in auton even if it is an accident.

Yes. People have gotten away with it, but definitely don’t bank on it.

Let’s be more precise. No, it is not illegal to cross the line in autonomous. Just don’t touch the tiles on the other side, and don’t touch their platform.