The shop may have messed up my alignment?

Its actually my co-workers Ford Exploder but i went into get the brakes and oil done. They said they wouldnt turn them because they were right at spec and if the turned them they would be under, so we ended up putting on new rotors also. Leaving the shop i got on the freeway and i hit about 70- 75 i think i and i got serious death wobble. I thought the damn wheel had fallen off...

Anyways what im asking is that when they changed the rotors, could they have messed up the alignment? Or do you think this problem was already there before? I guess i could go check the tires for an uneven wear pattern

 

Out of balance maybe? Did you lose a wheel weight?

 

Found out it was out of alignment before i went to the shop. The guy has been getting the death wobbles and just hasnt taken it in. The inside of his tire is bald already