Local-in policy to block VPN requests

So there is a certain IP that is filling up the logs trying to establish a site-to-site VPN.  I trying out how to figure out how to block it I came across Local-In Policies.  I set the below rule but still the logs are getting filled with these request:

config firewall local-in-policy     edit 1         set intf "wan1"         set srcaddr "BadGuy"         set dstaddr "WAN1-IP"         set service "any"         set schedule "always"     next end

Is there anything else I need to do or should this work?  Doesn't look like it is though.