Maybe dumb question... But are you doing the oil change yourself or is the dealer?
If not yourself, is it possible whoever is doing the changes is removing the air filter to check for an upsell?
I'm not sure which Honda you have(wasn't mentioned), but many of them have awkward air filter housings to remove without removing the whole duct up to the throttle body, at risk of dumping dust/dirt/whatever is around the ducting directly into the TB or on top of the (clean side) air filter.