Just so everyone is aware, seeking out does not always pan out well. I have GE and arrived at ATL, dog in tow. The machines were buggy and everyone was having problems. After it spit out my receipt, I was waiting in line and an officer waved me over, grabbed my receipt and said "Go". I collected my bag, went to the nearest officer and told her that I had to take my pup to quarantine for paperwork and had a bag to declare. She looked surprised that no one had asked me and I told her exactly what had happened. She took me to secondary where I unfortunately met the most rotten natured officer I've ever come across. The female agent conveniently didn't bother to tell him I had approached her and ran off, so he took license to treat me like a criminal. He told me to expect a call from someone about my GE getting revoked. When I explained that I had personally sought out to declare, he refused to listen. Pretty much treated me with disgust like I was purposely breaking the law. Turns out he didn't know how to calculate the tax and another officer was called in. This one was much nicer, asked a few questions and then mentioned that the machines are often broken. He said he personally wouldn't revoke my GE but it was up to the other guy. Upon which the first one then says "Well, if you approached the other officer yourself....." (?!?!?!).
Point is, you can try to be honest/dishonest and that's totally on you. BUT in either case, it really depends on the officers you encounter. ATL is definitely on my sh** list and I will not fly out of Hartsfield, internationally or domestically ever again given the chance (saw a female employee pretty much abuse elderly Hispanic travelers she was supposed to be assisting).