A lot of SJC-SNA flights are going through Gate 12 this month. I asked a 2 GAs last week if it was temporary, one just laughed and said the airline is taking over San Jose. The other GA said 12 and 13 are both going to Southwest full-time. They admitted the signage needs some work, more permanent signage is apparently on order.
I used to think the hike from gate 19 to the rental car center was long -- after last week's flights I expect I'll be getting plenty more exercise in the future
It's nostalgic to be back in Terminal A. These gates were Southwest's home 15 years ago.