Depends on what goes wrong. If you read through the many threads/posts on retrofitting CarPlay and Android Auto (type Carplay Android Auto in the Search box), you'll note more than one member needed dealer intervention after failed attempts to tweak the system. There's a second set of video screens for technicians that some have tweaked. The command key sequence to get into one series of GLA technical screens is different from another. I've lived long enough to know I'm not smarter than MB software writers, I personally would not risk it. But if you are attempting to reset with a hack tool, that's definitely rolling the dice, my opinion.
That said, I note you have a 2016 model US version (you stated you're in NJ). Do you know its production date? GLAs built on or after 1 December 2015 were the first compatible by design for CarPlay and Android Auto. If you have the multimedia package then it could be a simple job for the dealer to do a retrofit. Otherwise, you are dealing with potential issues. If you don't know your GLA's production date you can find out from any of the free on-line VIN decoders, as well as all the other original equipment and configuration of your GLA.