I've traveled with Muslims in many countries, and I've never never ever seen what you posted.
In essence it depends on what type of Islam you are looking at, and also how adherent the particular muslims are to their faith. Due to this there are some inherent differences between Moslem groups, even if they are from the same area and faith sib-group (eg Shiite, Sunni...even mroe esoteric branches like Sufi and wahhabi).
Anyway i have had the 'pleasure' of knowing certain families that follow Islam to the letter....and they do follow a lot of the rituals that Freeper posted! And go some steps further even!
However most moslems in the US are not as dedicated as their peers in more puritanical Islamic (and non-islamic) nations are, but that is not to say such practices are not real!
A good analogy is that of a guy in Brooklyn of Jewish heritage who consumes pork rinds and works on the Sabbath! Just ebcause he is not kosher does not imply the rules are non-existent...it just means he decided not to adhere to them.