Well, it will depend a lot on how many schools are out the week before X-Mas. My kids' aren't, but they'll get the week of Jan 1 off. I wouldn't go that Friday or for the next two weeks. Maybe on Jan 6, we'll go.
"Here You Leave the World of California Today and Enter the World of, um, er, California Today."
Actually from past experience its not too crowded on those dates, its ok , not empty but not chaotic, but head for home before Christmas day its a So Cal tradition to open your presents and head for DL.
Actually, this year our school district in Burbank has the week before Christmas off, so I expect a lot of school districts in Sothern Cal are doing the same. Be prepared for anything, remember it is still the 50th Anniversary