2013 Chevy Impala with a squeal in the front end

They may have damaged your car winching it down tight to the flatbed. They basically stretch it down tight. Have your mechanic examine it for marks on the suspension when the chains were attached. Then look closer for bending or damage to lower control arms and stuff like that. Tow truck drives aren't always smart enough to hook those "T" hooks into the tow holes in the unibody rails. That's the way professional car haulers hook up without causing suspension damage.