Good idea. I haven't entered a prologue since I injured myself in one (Ipswich, QLD) and couldn't run any of the 3 Days.
I studied there for a couple of years in the late '80s, so I will also save myself the embarrassment of getting lost. (I might pick up a map for the collection if I get there before it finishes.)
I'm impressed by your 80km+ M7-M2 ride home. I thought you were just going to do some circuits of the Gardens.