Missed a call from a Las Vegas number (area code 725) on 3/9. Ignored it, thinking it was a wrong number. Didn't realize, until stumbling upon it in the forums, that the Tesla ISAs are based in Vegas. Called the number back today, and got a voicemail for my ISA! Not sure why he didn't leave me a message back on the 9th, but oh well. I left him a message, and he emailed me back to tell me that my car is at the dock in San Diego, awaiting transport. He's going to call me tomorrow, with more details. Progress!