OK, so you're tank IS empty, it's morning rush hour, and gas prices are SOOOAAARRRING. You have a meeting soon What do you do??
You're definitely in an urgent situation. Hey, it happens. So just get out of urgent. You don't have to fill up the entire tank just because you're at a gas station. Just fill up enough to last you until the evening, when the prices will go down.
It's a simple solution, but sometime you need a paradigm shift to see it.