All the doors were wet? This means he is a serial urinater.
Wow, that's a new one. I'm not entirely sure that police would even respond to that under normal circumstances.
I will say, however, that in the town I went to college in, the city had no charge for public urination - they would, however, charge you as though you had been "pleasuring" yourself in public - sex offender registration and the whole bit. So if someone called in a drunk peeing on a building, the cops responded quick.