Not an option - I have a job, sadly, so must be there on time! Next time I'll be able to take it to them is in 9 days time (next weekend). At events both days this weekend and work 9-5 Mon-Fri and garage in opposite direction to workplace!
Well I've already driven 8-10 miles, hence noticing it getting hot. Given that I can't take it back to the garage or work on it until at least next weekend I guess my only option is to drive it as much as I need to and hope it starts to cool down...
not ideal, but my only option I guess!