Update. I have possession of the Navigator.
I arrive at Fayetteville, NC regional airport at 6pm. The mechanic was to pick me up. He called me and said at the last minute the driver side window would not go up, so he would pick me up in his minivan. The mechanic arrived one hour later.
The mechanic said he had a new 25 year old apprentice and was a good kind. I briefly met the apprentice and found out he had a fractured skull, and likely some brain effects from the fracture. I have a childhood friend who had brain damage in his 20's, I have great empathy for the young man. I suspect he was cleaning the SUV interior from grease and sprayed cleaner on the switches and it took out the driver window switch. Radio also will no longer turn on.
When I started the SUV at the mechanic's shop, I could hear a misfire. I spent enough time, money, and energy, so rather than say anything I jumped in and drove off. I could feel a loss of power/ shudder at around 50 mph in OD. If I put the SUV into 3rd the shudder went away (or so I thought). No check engine light as of yet.
About 15 miles from the pickup, I stopped to get fuel and check the oil, transfluid, and coolant. Oil looked brand new and super clean. Trans fluid had a cherry red color, and a flexible dipstick that I didn't recall Ford used in that version of trans. Theer was some coolant in the overflow, yet pressing on the radiator hoses showed no pressure.
Started the SUV after filling with fuel, and the check engine light lit solid. Decided I would drive the SUV to the Wal-Mart in Lumberton, NC, about 20 miles south of my location. On the interstate, the check engine light went from solid to flashing. Made it to Wal-Mart, and discovered this location does not sell code readers. It is now 9pm and all the auto parts stores are closed. My goal was to drive 180 miles to Columbia, SC tonight and then get a hotel. Thought a flashing check engine light to risky to drive on, so I am now at the Springhill Suites in Lumberton, NC. Less that 1,000 feet from the hotel is a Ford dealer. I will be at the Ford dealer when the service department opens tomorrow morning.
I sense/ speculate the mechanic knew the SUV has a misfire. He could not figure out the misfire, and was not in a position to "farm it out". It hit me a few minutes ago that maybe he did not want to drive 20 miles to pick me up in the SUV, as that may have shown the misfire/ check engine light trouble.
Wish I would of brought a code reader with me.... but "that's life".