you have two options wait some more to see if it's cashed or use the IRS website to make an online payment which would stop the accruing of penalties and interest. if and when you receive a penalty notice, you can write back to the IRS explaining the situation and requesting abatement of penalties, By law, interest can not be abated. It's totally at the discretion of the IRS as to penalty abatement
https://www.irs.gov/payments
if you decide to make the online payment you could then stop payment on the check.
here's from the IRS website about stop payments
https://www.irs.gov/taxtopics/tc206
Stop Payments
A dishonored check penalty isn't assessed on checks or other payment instruments for which you placed a stop payment order. If you're assessed a penalty, please send a copy of the stop payment request along with your penalty relief request to the service center address listed on your Letter 608C
