I saw that too, but when Walt stepped out of the vehicle the car was beeping like it does when the key are in the ignition, and Walt shuts the door with it still beeping.
When Jesse gets into the car, there is no beeping.
I think Gilligan has deliberately given contradictory clues so you can't know what's going to happen.
I still say Jesse is going to pull a Mexico redux and drive them all out of there.
Excellent detail! So maybe the keys Gomey took from Walt are for the car wash -- soda machine, etc.
Man oh man was I wrong about my predictions of Jesse's plan to get to Walt "where he really lives." I knew only Walt knew where the money was and I could not conceive a way to bring it back into the story.
There is really no way to make predictions about this storyline. Vince Gilligan has made it his life's work to be unpredictable. And he certainly is that.