Just for information - Oxford rent at the Kassam is around £300,000 per year for a 3-sided, 12,500 stadium. However, they reckon the "service and facility" charge is another £500,000 so it's not only about the headline rent figure.
I don't live in the City, but to cover public areas with sky blue ribbon would be a great visual sight and no doubt bring the media in to follow up (again!). As said above, subtle but effective.
I think it's only a matter of time before Joy gets her cock out and posts it on Twitter. The club should be up for sale shortly after this despicable act........