So I figure your not too keen on him then Jay
I thought you were not allowed to buy a domain name & then not allow it to be used. In the earlier days people bought all sorts with the intention of making big bucks, but my understanding was it is no longer allowed & would have to be transferred for something like £50 - £100.
You may have to get the fob re-coded to the car. You should be able to lock the car with the key but you wont arm the alarm. There is a guide to code the key, just use the advanced search button.