Holy fuck congrats on the job, that's awesome! Don't worry about your hair, they already hired you and it won't be an issue that you're wearing what you wore to the interview, we're all so proud of you!

Just keep it neat and clean I think is the thing.

Definitely doesn't hurt to air on the side of caution. Though they definitely could try to use that in racist ways I presume hopefully they just are trying to stop people showing up with out of bed hair mess everywhere because it makes the bosses feel like their precious employee rolled out of bed 4 minutes before job start and didn't take the time to "get ready" for their day working for them properly. There's a certain mentality among managers who put on their dress shirt and slacks every day after styling their hair and getting their coffee that there is a right and wrong way to start the work day and guess what their way of getting in the right attire and "mindset" is the right way and encourages productivity so they think. Meanwhile the thinking goes getting up late, not getting in the right mindset with the right dress and grooming is the habit of a lazy person who won't give them the 110% they've been drilled to expect in their propaganda mills.

Same thing with the head-covering rule, sounds like they don't want maskers and have a real "we want to see your face and your smile so we know you're not making faces at us, it's part of getting to know you blah blah blah". So I'm thinking that won't be an issue as long as you don't cover your eyes, mouth, and their way of seeing your expressions while on video with them.

Best of luck comrade, you got this!

Audiobooks as a side hustle is a good idea. There's plenty people out there who prefer to listen to an actual person over an AI generated voiceover, so I wouldn't worry about that aspect.

Dont worry about your hair. Bringing it up will only make them more likely to find fault in it.

If you live in the US, looks like hair discrimination is explicitly protected against in some states but not others https://en.wikipedia.org/wiki/Discrimination_based_on_hair_texture_in_the_United_States

If they took no issue in the interview, the cap seems good for now? Hate that they care about appearance in any regard given customers never see you, but managers gotta power trip I guess. Echoing other posters that there's a good chance it's something that is on the books but never ends up being an issue for you. Not trying to discount the history of hair discrimination, definitely something that could happen, but hoping for the best for you.

You're not supposed to take "dread locs" literally!

but for real personally I would just not say anything, if it's made into an issue default to the rasta cap, that probably won't be made into an issue since you had it on in the interview

good luck with your new job btw

congrats on the job.

if they're going to have a problem with your natural hair they probably won't know the difference between anything you'd wear that's more "exotic" than a ballcap or bandana. I'd port that "clear view of your face" bit up to the hair point since that's where their mind was at when the rules were written down.