Not doing to lie, mine did this the other day at the petrol station about 2 minutes, literally, from my house.
Started up from my house cold, drove to petrol station obviously not up to temp. Turned off, filled up, paid, got back in and exactly like yours it just ticked over but didn't fire. I left it 5 mins and turned the key and it started first time like normal.
Since then (Saturday) I have put fuel in the car twice and I didn't turn the car off while filling up just incase lol. But it's been spot on since and just like normal. I think it was where it was still cold maybe, I don't know.
It's weird man!!