Did the DC submit everything to CA for you?You added in a 3rd state, that's your problem. I've never had issues bringing a car into CA and registering it.
From Tesla's perspective it shouldn't matter how many states are involved. If that the problem, only 2 states are even involved anyway, the one where i pick it up, and the one it's getting registration in. A 3rd state doesn't impact giving me my paperwork or the 30 day dealer temp tag. The temp tag is in the state it's delivered and when I leave the lot all the registration stuff is my responsibility. When they get around to getting ahold of me again, maybe I simply it for them... I'll pick it up in Vegas and register it in FL, then UT has nothing to do with it and I'm not tied it anyway since my DL is from FL.