What they hadn't planned for is the Antioch police K-9 unit who was holding a training session there.
At the time of the break-in, an officer was hiding inside the building in a training exercise. Shortly thereafter, a K-9 officer announced that a dog was about to be released and that anyone inside should give themselves up or risk being bitten.
Ayers surrendered immediately, police said, and the K-9 officers found Guilliee hiding inside.
Police arrested the men on suspicion of commercial burglary.
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Information from: San Francisco Chronicle, http://www.sfgate.com/chronicle
