Gotta love mechanics......it's hard to fine a reputable place these days. Seems everyone is out for a quick buck.
It's probably easier and quicker for you to do a little looking and try to locate and repair the leak. I know that it should be the shop that does this, but why leave it for another day? As mentioned, and from previous experience with "whoops" shops, it's a good possibility it's just a looses hose connection. If not, then bring it back. AT least then you can tell them what it's NOT from and go from there.
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