Update
Looks like the pressure has had a positive effect, at least for the city of Dallas:
"The action taken was not sanctioned by my office and was not an official ceremonial honor on behalf of the City of Dallas. Official Keys to the City are presented by the Mayor, or an elected official designated by the Mayor, and reserved, on a limited basis, for an elected official of international status. Clearly, this was not the case in this situation and done without my knowledge or approval.
Mayor Tom Leppert calls for new guidelines on keys to Dallas | Dallas City Hall Blog | dallasnews.com
This certainly is irrelevant to what is evident in the video on Vick, but at least the city wants nothing to do with this.