Wow! I had something very similar happen to me at a
JIFFY LUBE in Richardson. I took my S-10 in for the regular oil change several times in a row. And then my front end got REALLY REALLY LOOSE. I took it to a different mechanic who told me that the joints were completely dried up.
JIFFY LUBE DIDN'T PROPERLY LUBE THE CHASSIS!
I've refuse to ever take my cars back to one of these idiotic places.