Tower's taping policy changes with the wind. I've heard of people running stands FOB for bands that allow taping but do not have taper tickets or a tapers section. I've been kicked out for taping FOB and up in the Loge for Phil Lesh where they had a specific taper section set up under the balcony in the last few rows. Last Oct. I ran openly from the front row of the Loge with no problems for SCI even though they had a tapers section under the balcony. A friend did the same the night before.
2nd row may be too close to record from, but maybe trade your ticket back a bit, maybe the 10-12th row, and ask the usher if you're allowed to record from there before setting up. Of course, if you have a stealth (ie. in hat) rig, just run that and don't say a word.
Have fun. If you park on the street, don't forget the meters run until 10 or 11pm. You will get a ticket if you don't feed them.
Craig.