For me, I know where I am, I have paper maps not just GPS to get me where i'm going.
I never park with a near empty tank with the idea that I'll fill up on my way out.
My water tank is filled for each trip.
I have enough non-perishable foods to supplement my meals for several weeks.
I make sure I'm aware of the weather expectations for the duration of my trip, and I keep track of changes to those expectations daily.
I don't push the envelope - if there's a fire in the area, I head out. I'm not going to wait it out and see if it gets near me - I'm going to make sure I'm safely away from it (mostly because I don't EVER want an emergency worker to have to risk his/her life because I waited too long to leave).
My work includes providing emergency vehicles, etc., so that historical artifacts and other items of significance are able to be gotten out of danger. I have seen a "we've got 3 days to get this stuff out" turn into "we've got one trip in and out to get this stuff out" within hours. So, I take it seriously to get out when the getting is easy.
I will also offer to help others, including authorities, to get things moved out early. The more that gets moved when we've got "3 days" the less chance someone needs to make that last "one trip in and out" when things are very dangerous.