Addendum To: Thought My Car Was Breaking Down, But Then ...

Yeah, car and key fob worked just fine to and from the Vikings Game.  Thought I would switch it to the other key fob, the one that I hadn't used.  Big mistake: I put in the (correct) battery, thought it would work fine, pressed the button and ... nothing.  Pressed it again ... and the car alarm went off.  And it took two tries to start the car in order to turn off the alarm.

So, through all the crap I went through, part of my worries seem to be real.  I no longer believe that spare key fob works at all.  And I no longer have any margin for error in case the one I have stops working.  So, I need to buy a spare.  Hopefully that one will work.