Reload Apache Using ACME User
Solution 1:
You need to BE the user acme when you run sudo, not with -u acme.
acme@host:~ $ sudo /etc/init.d/apache2 reload
Another possible issue:
The % in your sudoers file denotes that acme is a group. This is not an issue when your user is in a group called acme, but it is if he is not.