Well actually, we did clean it. I tried to get the manager on duty to call his boss, he said his boss didn't answer. So I told him "they would have to get it fixed before we cleaned it, I'll check back in a few days to see if they got it fixed and to reschedule". Then magically the next thing I know the manager come out of the office holding the phone and tells me his boss wants to talk to me. (Funny, I thought he didn't answer the phone.) This guy tells me he is having an inspection tomorrow and it has to be cleaned. I explained to him that if system goes off he would not even open up on time the next day. He said clean anyway and don't break it. (Yeah OOOOK" no problem!). Anyway I had them sign a paper stating that we would not be responsible if it went off, we were extra cautious around the link, which I don't think worked anyway, and the job actually went quickly, not very dirty.