If the question is "Have I successfully defended myself from a patent infringement case" the answer is no. If the question is "Have I ever acted Pro Se in a court of law" the answer is yes.
The latter is enough, IMHO, to qualify me to say that for certain open and shut cases, a lawyer may not be needed. Claiming that one company owns the right to digitally draw a line on a moving map and anyone else that does the same is violating a patent, regardless of whether the code is original or not is open and shut, IMHO.
Especially when there is easily found prior art that predates the existence of FlightPrep (Google Directions being one of the earlier examples through the GDirections API).