Wow, this is crazy. I can't believe you don't just walk away from Marriott over this.
Next time try Hampton Inn... 100% Satisfaction Guarantee is real. You can be dissatisfied with any little thing and get a night comp. Once housekeeping didn't come during my stay and when I went to the desk to ask for towels they comped the night on the basis that I couldn't have been 100% satisfied if I had to ask for towels.
Urine soaked bed, 5000 points? I would leave and never come back.