(20 Jan 2017, 10:13 pm)South Tyne Lad wrote Pretty unusual then, The wifi for the ticket machine is normally locked with a password.
Only other reason I could think of is a brand new car with " Car Wifi " was in the area at the same time.
It was a GNE wifi my phone was picking up, hence the prompt to join.
I can only assume a wifi enabled vehicle was in the vicinity, but out of sight in this case.