Should I claim EXEMPT on the W4 for the rest of the year because of my upcoming solar tax credit?

I just had a large solar system installed and should be receiving about $40K in solar tax credit when I file next year (I paid much more tax than that in W2 withholdings so far this year).   In order to have a bit more cash flow for the next 3 months I am wondering if I can/should change my employer W4 to EXEMPT for the rest of the year.  I am a bit hesitant because of the wording on the form to fill out on my employer website, it says "I certify that I meet both these conditions..  in the prior year NO tax liability, ...." and so on.  That's not true for me, instead it's because I will have a big credit and I'd rather not give the IRS a loan for the next 3 months.  Should I ignore this wording and claim EXEMPT anyway?  I would change it back of course, in January.