Here's a map centralized on the Kleiber Hall area...
http://www.cevs.ucdavis.edu/map/map_detail.cfm?centerTile=9_5&assetInfo=79
The closest public parking lot is just north of the soccer/lacrosse fields, but that is pay-to-park.
The closest free parking is totally walkable. Space is available along the curb of Rusell between Howard and Sycamore along the edge of the westbound lanes. These spaces are completely unrestricted. You can also park on any neighborhood street adjacent to Russell such as Oak, Campus, or Oeste, for free after 5:00 p.m.
You can also park downtown, but not in the restricted area bounded by A, B, First, and Fifth Streets. Near the Delta of Venus are good downtown spaces. Between B and D and First and Second are the closest downtown spots.
This show will start promptly on time. "Casually late" means you miss something rad this time.