Also if you didn't get one while there. Go back and ask for one. It'll be lickety split.
Yea. They all have notes. Request one, you, or the insurance you've paid for pays them. Perhaps both.
I get doctor notes from my 40 dollar under the table chiropractor. Get my back cracked, get a little note telling my job they can't can me. Dentist has to be better than a chiropractor lol. Worst you'll get is an evil eye, a crap question you don't need to explain followed by a note.
(Experience) - 10 years working crap mandatory weekends and overtime jobs. Give them income at their 40 hour or less a week job. Smirk at them and tell them you'd like if they could sign the date to get you another couple more days off.