I was waiting for someone to mention plastic breaking down. I left two 15-round Glock M19 magazines in the center console of my truck for quite some time, and when I went to get them out to shoot the ammo and replace it, I found that not one, but BOTH magazines had split wide open. The plastic was broken all the way from feed lips to base, and when I pried on it slightly, the plastic simply broke the way a plastic milk carton breaks up after being out in the sun for a long time. I had to replace both mags, but I did strip the springs, followers, and baseplates in order to have spare parts.
I guess the moral of this story is that the center console of an F150 is not a long term storage solution for plastic magazines, even though they were completely hidden from sunlight. I can only guess that the ambient heat broke them down over time.
This is yet again a plus for the XD, as its mag bodies are made of stainless steel, and I rather expect that if there is any failure in the baseplates, it would be quite inexpensive to replace them. I'm thinking about getting a couple of spares just in case.