I am not sure about firestarters, especially that you work in urban environment & thats only 20 minutes away from your home

OTOH, I think you need more lights in your kit

How about a head lamp so you can work utilize both hands if it was dark ?

I keep three lights in my EDC ( one of them is a headlamp) plus two small flashlights in my desk. Nothing worse than an emergency in tall building and you can't see where your are going.

As far as locked doors are concerned, remember that you have fire extinguishers ( I hope you have them !!) If a door wont open in an emergecy, just throw on of these on the glass and smash your way through. THIS APPLIES ONLY TO (ABC)type extinguishers. Don't try that with CO2 extinguishers, or any cylinders containing compressed gas.