I would not abandon my vehicle just because I am in gridlock. We have gridlock getting out of Phoenix every Friday afternoon. It would be nice if you had extra gas with you.

I keep a Glock 27 with +1 magazines in my car at all times. I have a holster pop-riveted to the center console. I can have the Glock in my hand as fast as any on-body draw.

If I was worried I would also take my modified Ruger Mini-30 with several magazines. It has a 1-4x scope, pistol grip stock, and target barrel. I'll dump it for a Kel-Tec as soon as they sell a 6.8 SPC carbine.
_________________________
Thermo-regulate, hydrate and communicate.