Hi Jason!
At the time of the mapping, we did not have August street view imageries. However, we have them now. I have re-verified the data, and indeed, the ramp has been closed since August. I’m so sorry for initially overlooking it.
We have closed the ramp in this changeset: https://www.openstreetmap.org/changeset/170376987#map=19/32.729775/-117.198006&layers=N. Thank you very much for bringing this correction to our attention.

Best regards,
Yuliya
