You were not evicted for not being a customer. You were (probably, since I don't know any details of your case) evicted under §156.181 of Louisville's code[1] which requires the capability to heat a dwelling to exist in order for that dwelling to be occupiable. If you have gas heat, that means needing to maintain gas service. You can't waive this requirement by agreement with your landlord because slumlords would abuse that power imbalance to skirt their obligations to keep shit working.
[1] http://library.amlegal.com/nxt/gateway.dll/Kentucky/loukymet...
We forgot/neglected to make the last payment to AT&T when we switched to Comcast. I am not so worried about the police sending me to AT&T jail. My unaddressed car registration is a different story...
Not clear what happened in your case, the Gas Company notified the police to evict you? Is the Gas Company following a law in which they are required to tell the police?
And debtors prisons are still a thing: https://www.aclu.org/issues/smart-justice/sentencing-reform/...