car wont crank/ 2014 push to start buick lacrosse

i have a 2014 Buick lacrosse, the other day i had the oil changed and when i
was leaving the car wouldnt start (pused the push to start button and just
clicked several times and didnt turn over. One of the tecs came out and
jumped the car and it started no problem, i assumed maybe they left the light
on the car running and that drained the batter. next day same problem i tried to
jump the car let it sit for a while and it still wouldnt start same clicking sound. i
took the battery out took it to auto zone and they said the battery was just fine.
i put it back in and then the car started no problems. took it to the dealership
next day and they said there was nothing wrong with the car, they checked the
battery, starter, alternator and said they didnt find any thing wrong with the car.
Now the car does this maybe every 3 days and then suddenly starts just fine.
there is also a smell that is given off when i keep trying to turn it on. link to a
video i recorded of the car not starting https://youtu.be/qSVQW5WqQWw