Thursday through Sunday is a "Residence Hall Move-Out" period, which will displace campus parking. Things will be particularly bad on Friday, when various commencements will be held on campus and parents will be driving around in confusion trying to figure out where to go.
Yours truly recommends staying away from Sunset Blvd. and avoiding streets where there are dorms and fraternity and sorority houses. That pretty much confines you to entering from the south on Westwood Blvd. if you drive to campus. If you take Uber or Lyft, don't let your driver's GPS take him/her to Sunset and the likely-to-be-congested side streets, as above. Or take the bus. And don't blame me.