Geolocation irule for states

I have changed my rule a little and got it to work.

when HTTP_REQUEST {
    if { ([string tolower [HTTP::uri]] starts_with "/testingpage") } {
      Parse the client IP from the CDN header
        set client_ip [HTTP::header value "Client-IP"]
        if { $client_ip eq "" }{
     The header was empty/did not exist, so use the actual client IP
    set client_ip [IP::client_addr]
}
    switch [whereis $client_ip abbrev] {
    "NJ" -
    "ID" {
        HTTP::respond 200 content "Your IP IS from NJ or ID"
    }
    default {
       set state [whereis $client_ip abbrev]
       log local0. "Lowercase state is $client_ip"
       HTTP::respond 200 content "Your IP IS NOT NJ or ID you is $state"
      }
     }
    }
}

but I found a new issue, that is that I have a front end with imperva for security, the $client_ip always comes back with their IP. its like a huge proxy... but on my webserver I do see the client IPs using xforward...so Im not sure what to do.