That's very kind about your giveaway, but I would feel cheeky taking a box of freshly made goodies for free from your doorway and would want to give you something for them in return.
I think you could possibly donate them, like you did with the hospital workers that way people are on the receiving end of your gift rather than taking them from the doorway. I think people feel more comfortable if you hand them the goods rather than taking them.
Maybe you could find more places locally that would appreciate your donations or ask your Facebook friends for ideas on how to donate your products in the local area. That way, you'd get the word out about your giveaways and get more people interested.
Maybe neighbours, local businesses, garages, hairdressers, community centres, places that have groups or coffee mornings or even the church if you have one. Churches always have a coffee morning somewhere so I'm sure freshly baked goods would be greatly received there.
Worth a try.