401k Hardship Withdrawal ? Using the money for something other than what I said.

I’m not dishonest by any means. But my husband and I bought a house last year everything has broke septic etc. So now we are up to our heads in bills. Would I get into big trouble if I did a withdrawal for like 1000.00 said I was using it for medical bills I owed but then didn’t pay the medical bills ? When I called my plan admin today they told me they can’t track what people do with the money. But can the irs ? Will I go to jail ?