Try:

my $ua = LWP::RobotUA->new( 'myagentname', 'address@a.tld');
   $ua->delay(4);

my $response = $ua->get('http://bla/../');
print $response->content;
[download]

$response has different parts to it, you must ask for $response->content to get the fetched data, or you get this business: Response=HASH(0x82111c0)