That sucks brotha! I travel around 40 weeks a year and have not run into this issue yet, although I have heard from other traveling buddies that they have run into this.
The only variance I have found is that I stay at Marriott and Hilton properties and those who have reported the issue are staying at Best Western or Motel 6 type establishments and perhaps they don't care to cater to the adult male business traveler as much as they do vacationing families.
I would email the General Manager of the hotel that censorship of this type is unacceptable and to let me know when they have changed this policy before I, or any of my colleagues, stay there again. Just my .02.