The problem is back :(
So after I refilled the coolant, a couple of weeks went by without an incident.
Yesterday, I was pulling into the same parking garage when I noticed the same coolant smell and the needle being pretty high- but not so much in the red. Again as I went up the different floors the needle moved around a little but remained above the midline. Both times that this has happened it's first thing in the morning, the engine is fairly cool and I drive in traffic, with some stop and go and iddling here and there for 20-30 minutes.
On my drive home I noticed that when I was sitting at a light the needle would jerk slightly up but it never went past the midline. It was not as long of a drive as my morning commute because there was less traffic.
Does any of this provide more clues about what may be going on?
Thank you so much,