Some people I know have let the fork leak until it stops and then keep riding after.
It isn't as good over bumps and handling, but it isn't like the wheel will fall off.
Vermin on ADV had leaking seals on his PC800, so he drill a small hole in the bottom of both forks, drained them, and then road for tons of miles, detroit to SoCal, SoCal to alaska, colorado to mexico and back. (he loaned the bike out for the AK to SoCal to AZ to CO legs)
If it isn't contaminating your front brake pads, you can ride a long time on leaking fork seals.
I fix mine as soon as I can though. I like good handling, and a smoother ride.