You can give them these two examples where the hotels lost when taken to court over accessible rooms only having one bed. Let them know you will be happy to file a suit but as they can see they will lose.
b. i) In order to provide individuals with disabilities
a range of option equivalent to those available to
other individuals served by the hotel, including
the opportunity to stay in a sleeping room with
two beds, Johnson Creek Hospitality shall provide
to any guest with a disability who requests an
accessible room with two beds, one of its
accessible rooms (each of which has only one bed),
and an adjoining room (with one or two beds), for
the price of one room with two beds. Johnson
Creek Hospitality shall insure that all of its
front desk personnel are aware of this requirement
and comply with it. Complying with this
requirement will require Johnson Creek Hospitality
to reserve, until all other rooms are rented, not
only its accessible rooms, but also at least one
standard room adjoining an accessible room, so
that the option of an accessible room with two
beds will remain available to individuals with
disabilities.
http://www.usdoj.gov/crt/foia/diwi1.txt
The next one is from June-Sept 2001
A wheelchair users husband alleged that a California hotel offered only king beds in its thirteen wheelchair accessible guest rooms. The complainant required an accessible room with additional beds to accommodate his wife and three children. The hotel agreed to adopt a policy to provie additional connecting rooms, if available, at no additional charge. If no adjoining room is available, the hotel agreed to provide roll-away beds in the accessible room or, if necessary, find a room at another hotel that has a wheelchair accessible room with multiple beds. The hotel also agreed to pay the complainant $2,500.
Cindy