Keep engine running whilst locking the car
I wonder if there's a way of starting the car in the morning and then leaving the engine on whilst I step out and do other things so that its nice and warm when I get in to drive? I park in the street, so obviously I don't want an opportunist to think its his/her lucky day, so I also want to lock it.
I tried this with the spare key yesterday, but the keyfob won't lock the car when there's another key in the ignition. I also tried to manually locking it with the actual key but it locks the driver's door fine but when I tried to open the other door it opened. No key hole in the passenger side door so can't lock that one either.
is there a way?