During the 2017 Tax Year I lived in California until March 14th. (relo) My employer didn't change my address till May... How do I get back 2 1/2 months of overpaid taxes?

Title says it. 01/01/17 - 03/14/17 I lived and worked in San Jose California. I was relocated for work and moved in with a friend in Texas. To my surprise, my employer paycheck after paycheck forgot to change my permanent address. (Which is a whole different story)

How do I get my money back since I overpaid state/city tax for near 2 1/2 months?

Thank you in advance!


***EDIT***

I'm doing State Tax right now. I'm at a part that asks "How much of the $xxx,xxx did you earn while living or working in California?"

Now the blank has the amount that is reflected on the W-2 (Which is wrong and overpaid). Do I erase that and go back to my paystub on the 5/31/17, which is when they finally made the change, to enter that amount?