About The precedence order: who wins when signs disagree?: which statement is WRONG?
The duty to follow instructions applies generally to authorised and identifiable officials AND traffic controllers, with no limitation to accidents.
Traffic lights outrank traffic signs that regulate priority, not the other way round.
If a traffic sign contradicts the priority-to-the-right rule, the priority-to-the-right rule still applies, because it is in the law itself.
Road markings are legally their own category of traffic signs, alongside signs and lights, with the same binding status.
Explanation
trap: law-feels-heavier-than-sign reflex. Traffic signs outrank traffic rules, insofar as those rules are incompatible with the signs. The sign wins, not the priority-to-the-right rule