The tech should have bled them already. The do have to remove the mater cylinder.
Many techs try to skimp as much as possible, one to maximize their paycheck, two to stock up on supplies. Often a job calls for brake fluid or what have you and if they can do the job without using the materials, they then keep it for themselves. And please don't come here saying that doesn't happen. I worked at the Dodge dealers parts department for a few years and saw it all the time. The mechanics hoarded crap like prisoners cigarettes.
Back on topic. My Durango after the booster replacement needed to be bled. They were horrendous. The tech tried to say he did it. However once I brought it back and watched him and another tech test it, the brakes were bled and all was good.