Realized my CPA didn’t exempt Treasury Bills from state tax. Worth paying for an amendment?

I have two brokerage accounts, each was holding a different mutual fund of fully state tax exempt Treasury Bills.

I made about 1.5-2k of interest so it would be 100-200 back in state tax.

In 2024 the accountant missed it completely. In 2025 I caught the error after realizing they misread the statement in 1 of 2 brokerages but don't think the other was captured.

I don't want to pay for an amendment as the price will likely exceed the cost of the additional refund so curious if it's worth pursuing and asking the CPA to cover or just let it slide and make sure it's addressed next year.

Thank you.