My advice is let it go til you get home. If you’re not starting and stopping with short trips - doing mostly highway driving you’ll be fine. I usually go 7500-10k on mine with synthetic or twice a year. Not worth the headache. Your engine will be fine if you take great care of all the maintenance stuff. You could swap the filter as
Mentioned if worried
my thought also. don't know anything about your vehicle, but i would just keep a few quarts in the vehicle, keep it topped up, and do it at home.