sudo password fail trying to setup monit for rails application - ruby-on-rails

Question

I'm following along with Ryan Bates' Railscast on Monit http://railscasts.com/episodes/375-monit?view=asciicast, the monitoring system for Rails applications. In it, he creates a capistrano recipe for monit (see below) which runs with the command cap monit:setup. When I run it, it fails with this message
command finished in 200ms
failed: "sh -c 'sudo -p '\\''sudo password: '\\'' service monit reload'" on 192.XXX.XXX.XXX
It's obviously a password related error, but I can't figure out why it's happening because the earlier commands that the script runs start stop restart syntax reload seem to run successfully until it gets to reload.
Noting that the second last line in the script uses root, I thought it might also be a root issue, since I'm logged into my server with a different user name (but with sudo permissions). Therefore, I changed root in the second last line to my user name and ran cap monit:setup again but I got the same error.
* 2013-07-10 05:52:01 executing `monit:syntax'
* executing "sudo -p 'sudo password: ' service monit syntax"
servers: ["192.XXX.XXX.XXX"]
[192.XXX.XXX.XXX] executing command
** [out :: 192.XXX.XXX.XXX] Control file syntax OK
command finished in 248ms
* 2013-07-10 05:52:02 executing `monit:reload'
* executing "sudo -p 'sudo password: ' service monit reload"
servers: ["192.XXX.XXX.XXX"]
[192.XXX.XXX.XXX] executing command
** [out :: 192.XXX.XXX.XXX] Usage: /etc/init.d/monit {start|stop|restart|force-reload|syntax}
command finished in 200ms
failed: "sh -c 'sudo -p '\\''sudo password: '\\'' service monit reload'" on 192.XXX.XXX.XXX
the Monit.rb recipe
namespace :monit do
desc "Install Monit"
task :install do
run "#{sudo} apt-get -y install monit"
end
after "deploy:install", "monit:install"
desc "Setup all Monit configuration"
task :setup do
monit_config "nginx"
syntax
reload
end
after "deploy:setup", "monit:setup"
%w[start stop restart syntax reload].each do |command|
desc "Run Monit #{command} script"
task command do
run "#{sudo} service monit #{command}"
end
end
end
def monit_config(name, destination = nil)
destination ||= "/etc/monit/conf.d/#{name}.conf"
template "monit/#{name}.erb", "/tmp/monit_#{name}"
run "#{sudo} mv /tmp/monit_#{name} #{destination}"
run "#{sudo} chown root #{destination}"
run "#{sudo} chmod 600 #{destination}"
end