What would you do?

The other night, I ran into a strange situation. I got to a provider's incall location, a hotel, and she was late.  I hung around and found that it wasn't a very nice neighborhood.  So instead of spending time in the parking lot, I drove around until the provider called me.  When that happened, I returned to the parking lot to find a Five-O walking to the entrance, his vehicle parked in the lot. I got that funny feeling, knowing that the provider was genuine but thinking someone complained about all of the guys coming and going and the Five-O was there to investigate.  Well, I wasn't about to risk it, so I drove away but called the provider, who said it was okay because Five-Os often stay at the hotel. Well that didn't make sense.  Why would a Five-O need to stay at a bad hotel?  Can anyone give me some insight. This provider has gotten good reviews but I've never met her.  Were my Spider senses off?  I hate to do things like that.