it happens to me when i leave my car to rest for more than 10 hours , especially when its really cold outside. when its warm tho, its starts fine. I went to the garage and they told me its my ignition, something about the valves dilating when its cold and this causesproblems with the ignition? Im not too sure.
All this to say, dont worry bout it, its nothing serious.
just play around with ur key in the ignition and you should be fine
Good luck with ur teggy