Some people here are advocating asking city officials, who have just given you an "ok", to have them give that to you in writing. I side with Treasure Tales on this: That is not a good idea, from a psychological perspective. I mean, that would be like being told "it's ok to make a U-turn at such & such intersection", and then asking the traffic person: "please give that to me in writing".
For starters, if they've just told you "it's ok", the only thing you'll do by asking them to give that to you in writing, is to stir up the imagination of some sort of legal stuff. Why should they be bothered? I mean, if the law is silent on an issue, since when does a desk-bound bureaucrat have to tell you, in writing, that there is no prohibitions? I mean, it would seem odd, like "give me permission to sing in the key of C at the intersection of Main St. and 3rd Ave, at noon tomorrow, while wearing a blue suit". If someone comes in asking for this type of permission, it would seem to only conjur up problems. Ie.: all it seems to do is caste aspursions on you, or your hobby, that it is so evil, that it needed written permission, to begin with! Does anyone else (kite-flyers, birdwatchers, domino players, etc...) need "written permission"? I question even asking permission for innocuous non-historic public parks to begin with, but to take it a step further and go telling them "put that in print", would only put the light on you differently, it seems. And when push comes to shove, they'll merely yank your "written permission" if they want anyhow. (oh gee, we didn't know you'd have to DIG", etc....)
