When it is time to retire and obtain the $ from my 401K can my ex-wife or the state take any of this money?

I have been paying child support for the last 10 years and my son is now 19 so that in theory has ended, however, I spent the first 9 years of his life as an alcholic and living on the streets. During that time I accumulated 50 thousand dollars of back child support which includes compounded interest from that time to this.

The state/ex-wife have garnished my wages and the amount of my back child support will be deducted from paycheck probably for the rest of my life (I am 54). The question I am asking is: will my ex or the state be able to claim any or all of my 401K monies when I become able to withdraw it?