Neighbor asking me for favors, how would you handle this?

I dont know her personally. We say hello to each other like neighbors do in passing. Anyways, I come home to a note on my door from her stating ," It’s me, your neighbor im going to bermuda. Can I leave my keys with you and you watch my car? Also, can you pick me up from the airport on monday?" Um, wtf 😳 I pretend not to see it and put it on another neighbors door.