Waited 2.5 hours for the most uninterested repair guy. He tried to tell me the resivouir had probably cracked. So I unscrewed the bolt and showed it hadn't. Then told me my vehicle was too large for him to tow and because it was rwd he'd need a longer tow bar? He then said it would be another 2 hours for a recovery vehicle!
I at least got him to refill the coolant which he did but said his coolant was a bit watery, which was nice!
Waited 2 hours got, bored and drove round the block a few times. No issues so I drove home in the dark and rain, everything was fine.
Looks like I'll need to give the motor a clean or pop up to the Cougar store.