Bodegas and street cats

So it is exceedingly cold now in New York, and most likely for this reason, a mouse appeared in my house. Now, the ecology of urban living is most interesting. I have noticed in the past few days a peculiar smell in the local bodega, it smells like cat piss. Now, this is the whole reason I started going to this Bodega, because it did not smell like either cat piss or gas from the gas refrigerators. So I asked the staff in the bodega and they said they had a cat, but that they have not seen the cat in a while... so perhaps the street cats are pissing in the bodega because it is so cold outside... I will be most happy when the street cats learn to use a litter box.