Civics: Does anyone learn them anymore?

There is a man here in Colorado who apparently sided publicly with notable anti-American and fake Native Ward Churchill. Well, he is a city employee... and the city was not amused. They asked him to go home one day and have since been monitoring him with police.
Now, I'm not so sure that a police escort is the right or fiscally responsible thing to do, but that's not what is at issue here. The issue is that this man is complaining that his 1st Amendment rights have been violated. I ask, how have they been violated?

"Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances."

Okay, no law has been made. No effort has been made to make him shut up. Where is the violation? He sided with a man who celebrated the deaths of two thousand plus Americans and now his employer has decided that they don't want him running around publicly praising such things. The First Amendment gives no protection from other citizens...

Also, isn't it a bit odd that when a Liberal (I assume, but then again, what Conservative would celebrate the death of Americans?) says something offensive, we are forced or at least encouraged to let it go because of 'free speech'... but should a Conservative say something offensive, he must immediatly shut up and appologize? Let's have some equality here!

All I can say to this guy is: Your own medicine does not taste too good, does it? Also, if you like it when Americans die, please leave the country immediatly. I hear Al Qaeda is a bit short of cannon fodder.