Purchased-Delivered out of state not for use in California

I am going thru this now and it is a pia. DMV will not register the trailer because their computer can not accept a future date. Purchased in March and still no title or plates. Have not been cited yet but when it does I will have damages and can/will seek civil recovery. The advise I received on this forum early on was invaluable... get everything in writing and only follow what is in writing. When speaking with the dmv you will get all sorts of wild answers. BOE is okay to deal with but not the DMV.