In California we had to make an appointment, they were not very helpful on the phone. I went with my daughter - even though she was 18 and they didn't want a parent there, my daughter had to sign a waiver that I be included at the meeting. It's always good for another person to go along, in my opinion, so you can be sure hubby asks any questions you need answered.
You can actually apply online from the Social Security. You will eventually be called in for an appointment but all the paperwork will already be done.
http://www.socialsecurity.gov/disability/