My babies car seat smells like a dead animal

Idk what to do. We had a mouse living in our car. Put mouse traps and thought it was gone bc we caught it after weeks of it pooping in the car. Then out of nowhere we find more poop so we set more traps and nothing ...then I haven’t been in our car in days and I go out there and it smells like a dead animal . We searched the car and can’t find it. Our baby’s car seat was in the car and it smells sooo bad. I’ve had it out of the car for 2 days and I have wiped it down twice with bleach spray and it still smells sooo bad. I have places i NEED to go today and I don’t even want to put my baby in it. It’s a safety first car seat. I wish I had the money to just go buy a new one