The jack is a screw type (not hydraulic), and you need to have some boards to put under it, because it doesn't really have enough lift to get the tire clear. My arms were very sore once we got it up to where we could remove the tire. The lug wrench was relatively easy, and I was able to break loose the eight lugs that hold the tire in place and get it off. I wrestled it into the back of the Astro and we took it to Big O Tires in Sparks where we bought the tire in the first place.
The immediate problem turned out to be a nail in the tire, which they fixed; however, they also told us that the wheel rim must have failed and it would not hold air. We took the wheel and unmounted tire back home with us, because with that diagnosis, we would need to buy a new wheel. When we got home, Lisa put some boards under the tire-less wheel and lowered it onto the boards, as pictured below.
Yesterday, Lisa examined the wheel rim and said that the diagnosis must be wrong, because the piece they said had failed isn't something that holds air anyway. It's a solid one-piece wheel, not the two-piece type used in some vehicles. We could have taken it back to Sparks tomorrow and asked them to remount it under the tire's warranty, but instead I took it Hanneman Service down the street and paid them $17 to remount it. This evening, we put the tire back on and we'll let it sit for a while and see if it holds air.
It's a good thing I don't have to drive it as often as I did when we first bought it. However, even so, we know that the vehicle (repairs and all) has more than paid for itself versus the cost of even cheap-by-Bay-Area standards hotels, when the fleabags in Fremont are charging $99/night and selling out. Nevertheless, even though I'm now officially 100% Work From Home, I have commitments (medical and dentist appointments, SFSFC and Worldcon meetings) that will take me to the Bay Area several times a year, so we'll need to keep the Rolling Stone in "warm storage" and run it periodically to keep it usable when needed.
If I do get a flat out on the road, I may well call AAA though. They have jacks in their trucks that are easier and faster to use. I'll only resort to the hand-crank jack in an emergency.