Does that mean it will be taken back to York for overnight stabling in future? This is a problem we don't suffer from as much as some our European neighbours, at least on passenger stock, presumably because it's usually kept in securely-fenced depots. Freight wagons are more likely to be targets, also stock on heritage railways.
If I remember correctly, there is a purpose built facility being built at Scarborough, just next to where the turntable is - you'll notice the sidings have been relaid recently.