Just realised you are OP. Missed the namechange the 2nd time. Name changes are confusing. Sorry about that.
Still though, as I said it really is fine to lock the door. I said that ages back and so did lots of others. But there will be choices you make countless times that, rightly or wrongly, annoy other parents. And you need to be able to own those choices to be able to brush off other people being rude. Asking permission to do something innocuous won't help you do that is all.