for #3 did u just shoot and go or camp there for a considerable time ?
always wanted to do a long exposure of central fire station's emergency vehicles as they turn out for calls .... the light trails by them is very different. That station is so busy at any given day that it's a sure hit ...
the only thing preventing me so far is a police man tapping my shoulder ... setting up a tripod and facing a cam at the station for an hour does seems pretty suspicious ... lol