You wont get anything from insurance, not car insurance or house contents unless you can prove it was forced entry, which you cant as the police wont back it up. So you will not get back the cash. If they had of written the car off or you had never found it you would have been royally done as you would have lost the car and cash and got nothing back for it. I instinctly couldnt get out the car and leave the keys in, my brain just wouldnt let me, its like forgetting to breathe, its just doesnt happen.