My wife recently went to Sears Tire to get a flat fixed. While she was there she had the tires rotated and alligned.

Afew days later she went for her , "A" service. The techs rotated her tires again! So i guess it's back to where she started.

Question: Did this actually nullify the allignement that they did at Sears?What should I do now?

Also, i was reading a alot about changing the tranny oil on this car...if the dealer does it for us, will that void the warranty? (since it's supposedly "sealed")
Thank you!

Ruby -1999 ML430 75K