I always have a capacitor and a relay (contactor) "in stock". So far last one installed has lasted 2 years. Thought I would need it today but it tuned out the condensate overflow switch's float hung up. The OP did exactly what she had to do and had no choice. If I was in her position I'd have done the same. I consider myself lucky that I am able to take care of these things myself mainly because I don't have the $$luxury$$ of being able to have people do everything for me even if I wanted.
To the OP, I'm glad you're cool again. I'd jump all over SUNKOOL for a refund. If it had been me I'd have either slept in my car with A/C running or taken out an equity loan to go to a hotel.