This sort of thing happens to me all the time when I'm at the cinema waiting for a film to start. The other day I heard this nice song and tried that music ID service with my mobile phone. I just ring #DJ (#35) and then pointed the mic toward where the music comes from. A minute later, got a text message telling me what song it was!
In Canada, Fido and Rogers offer this service, I'm pretty sure carriers in the UK offer this as well.
I don't care how cold cold cold it is in your hole hole hole, but you CANNOT have my sweater!