Chicago right? weird.. same shit happened about 2 months ago. we were painting a freight during the day and a helicopter showed up and circled and hovered directly above us for several minutes. we kept on painting thinking that they wouldn't be wasting their money on a helicopter trying to catch us lil old graffiti writers. it freaked us out a bit but eventually the helicopter did leave and we finished our pieces with no problem or chase. i wonder if it was the same place?
it's just funny that anybody would waste all of this time, money and energy trying to catch graffiti writers.