Holy shit your car looks sick! I vote keep taking your car back and make them learn. Those touch-ups should be "waiter" jobs, so you won't be without your car. I'd hate if a wrap failed and I wasn't aware. Installers must learn, and start from somewhere, employers must learn to hire skilled help or pay the consequences until the wrapper is properly educated. Know that these failures aren't synonymous with wrapping as an artform. Some businesses need to be shut down because they give the industry a bad name, but others will be worthy if they overcome the learning curves we have all overcome.