1st week of ownership, was using Waze via Apple Carplay and ended up freezing the infotainment unit. It seemingly happened at random. I did not provide any user input and was using Waze and Amazon Prime Music Streaming at the time of the occurrence. I too received an audible beep and then silence. At this point, I couldn't even use the AM/FM radio ("App" wouldn't load) function but oddly enough, I still retained usage of Sirius sat radio and most of the menu navigation control but nothing else would load. After arriving at my work, when I turned off the engine and opened the door, I noticed that the infotainment unit did not power down. Later in the day, I did some research on other forums and to your comment, found the thread on using a USB keyboard. (Sidenote: Another work around was to turn down the screen brightness to the off position until you can properly reboot the unit.) I grabbed one from the office, plugged it in the USB port, did the ol' Cntrl+Alt+Del and the infotainment unit went through the reboot sequence and was working fine after that.
After some additional forum research, I too found that Apple Carplay in general has been historically buggy with not only the Honda Infotainment units which makes sense that essentially you're trying to marry 2 software systems to each other which is often times is a mixed bag of results for the consumer.
Because of my worry of battery drain should I dare to use Waze/Carplay while on a roadtrip, I'm thinking of experimenting with finding a portable/folding USB keybaord to enable me to manually reboot the infotainment unit should experience this again outside of my home area.