Insom,
Bit of advice, when you go checking if a place says "no" ask if there is anyone who can refer to you a place that does. A lot of agencies employ social workers on their staff to grant such referrals but sometimes you have to ask.
And I'd agree getting drugs from friends is a big no-no. Withdrawal, if you are in withdrawal, is a pretty fragile state. You really don't want to be playing doctor. I did that myself and wound up in the hospital.