my car is missing a rear adjustable control arm much to fix? on 2007 Honda Civic

I was told rear tires cannot be aligned without this. I have no idea how this happened. Could a repair shop actually leave off a part and the car still drive???

Asked by for the 2007 Honda Civic
i think they mean the car came with non adj control arms and the repl are adj.that would make since
1 more answer
...........check honda dealer regarding a service bulletin on rear UPPER control arms and premature tire wear. The alignment adjuster is on the lower control arm.(for 'toe' adjustment only)
Qualified Local Honda Shops
Qualified Honda Shops For This Repair
921 N Parker St
Technical Ability
Tools & Equipment
Customer Service
Customer Amenities
(714) 486-0367