Yeah, I would not be happy!
First of all, at my house, everyone knocks and I have to answer the door before anyone comes in. I don't care if I run a home daycare or not, it's still my and my family's home and I won't have random parents coming in whenever they feel like it. Do the daycare parents not knock or do they just walk in at your house?

I have had parents try dropping off with my husband if I wasn't back from the school drop off yet and he straight out tells them that they have to wait until I get back. He is a very blunt person, so this would never go over well with him.

I don't care if they did come when they were supposed to, if for some reason I couldn't get home on time and they had to wait, they still wouldn't be able to drop off to my husband or anyone else in the house except me!