Hogwash.
Muslims believe Jesus was a prophet. They just don't regard Jesus as the Son
To Christians, Jesus on the cross represents forgiveness for our sins. To Muslims Jesus on the cross is simply historical fact and nothing more.
Sorry, but this is not a hate crime, even to a Muslim. Someone is trying to stoke anti-Christian feelings by placing the painting near the Mosque.
It is about as "offensive" as placing a painting of Buddha near a church.
Remove the painting and move on.