2007 Prius has C1253 AFTER dealership replaces Brake Actuator

My 2007 Prius recently had brake issues with codes: C1256, C1253, C1252. Took to the Toyota dealership. They said need to replace Brake Actuator. Total price after taxes ~$3600. An out-of-town shop would do it for $2200, but too difficult to manage the logistics. I pretty much assume the car is not worth this with a variety of body and paint damage and 175k miles. But, I said ok because car has been trouble free for years.

Upon pickup of the car, the dash warning lights were still on: BRAKE, ((!)), ABS, VSC.

Now dealership wants another $500 to do further diagnostics. They did say the car was "Safe to Drive". Unsure if I believe them.

Seems time to cut my losses. I have read many posts here on this brake actuator and know that it can be problematic. I may try to recoup some of the spent money.

Any suggestions would be greatly appreciated! TIA