I’ve been in FSD mode with this exact thing of being too close to the line, it’s dangerous. I wasn’t in the driver seat btw. Anyway, one time we were in a low density town and the Tesla swerved from being close to the center line to literally turning into an oncoming vehicle. Out of nowhere on a sunny day. Luckily my driver regained control but that scared me out of wanting to use fsd for years. Scared the shit out of the other driver I’m sure.