yes, it might help to contact a club manager or maybe the promoter and ask (not demand). i actually did that in the past for another band (The Heads) in another part of the club complex there (there are actually 3 clubs there). the band was cool with taping, but it wasnt well known, and the club had no idea. the club manager told me he just wasnt sure about it so he could not give me permission to bring in full gear, but "what he didnt see, he wouldnt care about. and noone would be searching at the door for recording equipment" ... ie., go stealth, young man. so we did. and after the show, we started chatting with Tina Weymouth and she was so pleased we stealthed it she invited us backstage to hang. was very cool. sorry, i stray. yes, my guess is that since it is very well known that Mule is very pro-taping, the key will be to just have management tell security beforehand that its ok for us to bring stuff in.
Mule's Official Taping Policy says they will have tapers tix (but I dont see any for TO) and tapers section.
Sounds like they are on top of it.