[s-cars] Rear CV joint gone 1000 mi to go.

[tr0910]

We are on a road trip, and just noticed a clunk aproaching
Minneapolis.  Found right rear outer cv joint wide open and spewing
grease.  Problem is that Carousel Audi says 3 days for parts and we
have 1000 mi to go.  Can we give it grease injections every so often
and just carry on?  There is a slight noise but only noticable at slow
speeds or turning left.  Antilock off light just came on.

What wisdom doth the mighty list gods suggest?