There are a lot of rules in writing. Some are solid ones, like rules of spelling or grammar, but others are more nebulous, like how to start a scene or whether or not to use adverbs. I like to look at these ambiguous rules as opportunities to improve a sentence or scene. Some "rules" have become common because they're hard to explain to new writers and it's easier to just say no.
But these are all moments that can help you revise your novel and show off your skills. They're opportunities to strengthen your novel.