Error caused a deposition to be cancelled last minute and now I feel really bad

Today I was doing a prep for a client doing a virtual deposition tomorrow. I’ve talked to him before and he knew it was over zoom. I find out he was planning to do this while driving for his job (he’s a trucker). Obviously can’t allow that so the deposition needs to be rescheduled, probably not until next month due to schedules.

I feel guilty now. OC is probably pissed and I’m wondering if I didn’t set expectations better before even though I said it was on zoom. How screwed am I? Also any other stories about people trying to do deps/hearings in very inappropriate situations would be great.