As RockyMtnCRV has noted.... you got your keyfob squished in your pocket or something.. and it caused the unlock button to be depressed multiple times and held down for one of those times. That tells the Honda that you are approaching and want the vehicle to begin airing out before you climb in and start it up.
It can be a bit disconcerting the first time you experience this.
There is no way to disable that feature that I am aware of.. and Honda really should add that as one of the owner settings in my view. But that would only solve this one issue. You need to just be mindful of this and avoid putting the fob in a physical situation where multiple buttons or button depressions happen (and not just for this... it also runs down the little battery in the fob prematurely, or could cause your vehicle to be unlocked when you don't want it to be).
Personally, I don't care if it happens in my garage, which is actually the only place it has ever happened for me. Out in public.. I always make a habit of looking over my shoulder and double checking my vehicle as I walk out of keyfob distance just to make sure everything is sealed. I also keep the keyfob in a separate pocket, never mixed in with other things that could bump up against a button when I move around or am rummaging in a pocket. My wife had this happen once at work with her Accord, and when I explained the cause.. she simply made a safe cubby spot in her purse where she can put the fob and not have it get squished or bumped by anything else in her purse... and has never had it happen again.
