I think I have a great area for San Diego to solve some of their budget worries: cut back on obviously excessive police resources. If they have time to mediate a laundry dispute for a mentally disturbed clothes dryer hog, then they have too many officers. That they took the side of this person is astounding. All together a sad incident. You behaved normally and reasonably in my view. Perhaps you should alert the Condo association to this person's conduct so they can warn her not to involve police on such silly "issues" again.
No, and it's crazy that someone would bother the police for something like this. This is at most a matter for your condo to have a rule for, and if they don't, this is really a situation where common sense and common courtesy in using shared resources like a laundry room should prevail.
Disclaimer: Please note that this answer does not constitute legal advice, and should not be relied on, since each state has different laws, each situation is fact specific, and it is impossible to evaluate a legal problem without a comprehensive consultation and review of all the facts and documents at issue. This answer does not create an attorney-client relationship.