Neighbor puts Easter eggs in my yard without permission, AITA for making him remove them?

When a neighbor asks to use your yard for an Easter egg hunt, it's a reasonable expectation to be asked for permission first. In this case, the neighbor repeatedly asked to hide eggs in the yard of the poster, who refused each time due to concerns of unknown children entering his property. Despite the refusals, the neighbor snuck into the yard and placed the eggs there while the poster was away. Upon discovering this, the poster demanded the neighbor remove the eggs, leading to a heated exchange. While the poster initially felt justified in his actions, he is now questioning whether he was in the wrong for not allowing the egg hunt to take place. What do you think? Should the neighbor have respected the poster's wishes, or was the poster being unreasonable in denying the use of his yard?