Just been away for three days weds-fri driving a van around the Peak district, Wales and t'North, and left mine parked up outside the warehouse.
Came back yesterday evening to a similar situation, but then had to ride it home in the snow.....not too much fun.
Key wouldn't turn in the lock- froze up, and then battery went flat trying to turn it over.
Luckily one of the guys who works there had some de-icer and a set of jump leads so got home without having to try to bump-start it on hi comp's on an icy road........wasn't looking forward to that, actually
Annoyingly, they said that if I hadn't locked and alarmed it so securely and taken the keys with me they would have moved it inside the unit............

It's not falling off, it's an upgrade opportunity.