Yep, I always have a little LED flashlight on my keychain. It's come in handy too many times.
I also carry a Swiss Army Knife, and a few wallet multi-tool cards. I used to carry a Leatherman, but just too bulky.
Besides, my truck is right in sight of my window, and has my GHB, as well as a life emergency bag (for life's little hiccups), a road emergency kit (which has tools and even a gas siphon kit), and all kinds of other goodies. I can't foresee much that would keep me from reaching it. (especially as an exit and stairs are literally within 10' of me).
Most days, I have my laptop bag with me too, which has kind of some mini EDC considerations stored in it.