Blower runs for about 2 mins after turning off the truck
 

I have a 2011 Pathfinder and started having a real odd problem the other day. I went to the store and turned off the engine but after I turned everything off, the blower in the front and back kept running. It ran for about 2 minutes then turned off on its own. I turned the car back on, turned off the climate control completely, then turned the car off. The blower in the back kept going then about 5 seconds later the blower in the front turned on on its own. Ran for about 2 mins then shut off. No idea what is going on...

What I can say is that it has been really cold the past few days (single digits) but I’m not sure that is the problem. Also, over the summer, my AC stopped working and Nissan did something to fix it but we opted to only have them fix the AC in the front. The back was another $800. Not sure if something they did eventually triggered this problem.