HOLD THE PHONE---You said that you DID NOT have this problem before the tires were put on---RIGHT?---He is talking control arms, and these would not have gone bad overnight---NO HOW; NO WAY (well minus a crash)---If you had this problem before, it would be a different story, but going from okay to problem AFTER the tires IS the tires or a tire---NOT parts---You are being SOLD and/or they are lost and do not know what is going on---IF (and this is a big if since I am not there) you did not have this before, then this is a BAD diagnoses!!! Think about it---You said it was not like this before, and tires and the alignment were all that was done---Must be these---Right?---Not new parts!---Alignments are NOT wobbles---Tires, bad rims, bad parts, etc cause wobbles, but you did not have the wobble before the tires, so stay with the tires---Put them on a balance machine and watch them spin---If they go back and forth (wobble) you found the problem.