This letter puts in writing the accrued vacation time you are owed, and mention if state laws govern payout.
Dear Mr./Ms. Bossname,
As we discussed earlier, I'm resigning as of today but will stay on for two more weeks to aid in transition.
I want to clarify that I expect to receive my regular salary for the final two weeks. I am also due 36 unused vacation days, which I would like paid out via cash (check) in accordance with state law.
Thank you for the opportunity.