Howard is demanding heightened security in light of his verbal altercation with a fan that resulted in his three-game suspension.
Howard was suspended and fined an undisclosed amount last week for profane language toward a fan during a game against Sporting Kansas City and an altercation with a fan following the match, which Colorado lost 3-1.
The USA international posted to Facebook: "I want to begin by saying I am genuinely sorry for my behavior in Kansas City and I want to apologize to my fans.
"I let myself get too worked up after being provoked and said some things I shouldn't have. I am at fault and certainly not a victim in this incident."
However, Howard, continued, "After reviewing the incident in Kansas City, my league and my team chose to admonish me and suspend me for almost 10 percent of the season, but they did not say a word about the fan's antagonistic behavior or the negligent security."
He added: "It is not OK for an apparently drunk fan to get inches away from an athlete's face and yell obscenities at them. While I should have controlled my reaction, I want to make it clear that I have never been put into a situation like that until Kansas City."