Just so its out there... last I heard the University bans sidewalk chalk in all places across campus except for when RHA does it in front of the dorms, and during Homecoming Week, during which they actually pass out the chalk for free so students can show their spirit (and even then they limit the 'designated' areas to mostly around the library mall). Otherwise, its frowned upon, and sometimes they make student organizations wash it off for fear of being placed on probation. Obviously they can't stop it (as can be seen by walking across campus on any given day), and often its not student orgs doing it (usually bands, clubs, etc). Perhaps the policy has changed, or maybe they'd be willing to give limited permission. But then that might open up "If they can, why can't I?"....