Returning to the room, I confirmed that the headset worked and that Skype works from from the hotel's internet connections and did what I could do to get secured for working today, letting my co-workers how to reach me and warning them that my mobile phone is out of service. Then we did get some sleep, although without my CPAP machine -- it was in my luggage -- it probably wasn't terribly restful.
We've found a shop within a couple of miles of where we are that looks like it could do the work on Lisa's truck; she spoke to them on the phone and they didn't rule it out, at least. Once she has the pickup rigged for being worked on in a garage (radios and antennas stowed, that sort of thing), she'll take it down there. With it being a short distance over streets (no high-speed/freeway running), she thinks she should be able to drive it there. I sure hope this is something they can deal with by tomorrow at the latest.