Cannot express how hard it is to find people who take their job personally to the point of paying attention to the small details.
We get IT guys who think their gods to man kind and comb through everything with a fine tooth comb. This guys first bout of cable dressing with me he didn’t have single twist, no divers. It was damn near perfect. The only issue was where the cable broke off the trunk to the patch panels. He had them a little 45ish. Showed him you want a smooth sweeping 90 and he dressed form entry to panel perfectly from them on. I left to another company a few years later and he had gone from a tech 1 to lead and had his own crew.
If you do good work it shows and it might just change your life. You never know who is going to see your work.
Factory intake ? Yes if there are no deeper spots. If the intake is after market and open filter nah I’d go seal the pipe up with duct take and plastic bag. I’d I try my damnedest to seal the exhaust tip so no water gets to the engine that way.
If you leave it an it’s going to get worse you can keep the interior from getting mold in it and dry it out. But I’d go and at least disconnect the battery.
Don’t know if any of that would help but it’s what I would do depending on choice