When we put our cat to sleep this summer, we had to pay before they did the "procedure". They did consider our feelings by taking us into the exam room and doing the paperwork there rather than in the middle of the waiting room. We also had to sign papers saying she had not bit anyone in the last 10 days (rabies). They also let us out through a back door rather than through the waiting room. We got a sympathy card too.
Your bill was alot less than ours! We paid over $100 for the office fee and the cremation (with ashes returned). I always thought this vet was expensive but I think they all are in a city. If we get a new cat, I think we will go to another vet, I couldn't bear to go to that office again with the memories. Plus I would rather go to a 24 hour vet, this vet left the sick animals alone at night (11:00pm to 8:00am).
Take care.