If it was on it's side and stopped for more than 20 minutes or so I'd want to check that a cylinder wasn't hydrolocked by pulling the plugs and spinning the motor on the starter. 20 minutes or less isn't long enough for that much oil to weep into a cylinder. Nice thing with injected bikes is you don't worry about the cylinder being full of gas!
The oil in the airbox will not hydrolock the motor. But, when it leaks out the airbox it will go all over the swingarm and rear tire. On the right of the bike look down behind the primary drive casing and there's a black tube with a plug in it. Pull the plug and let whatever is in there drain into a pan.
My other ride is 28m2 of nylon