That particular dealership is known for pulling that sort of BS.
It will be hard to find a shop that is reasonable in Sandy Springs. Kelly and Stans in Roswell is good:
Kelly and Stan's Automotive Service and Repair - Roswell - GA / Georgia - 30075
Send me a private message if you need more recommendations. I am very familiar with the shops that service Toyotas in the area. happy to help in any way I can.