"even if you do get caught as long as you are paying tax it is fine. " Sofia Comment is completely wrong. Taxation is a Federal law, Sex Law comes under State.
Under Taxation Law we all have a responsibilty to pay tax, even if the income is earned from a illegal business I.e drugs or murder for hire.
As to the hotel issue, I think you will find it is the hotels Motels themselves that do a regular clean out. When refuses a further hire they often use the police...like would you prefer we call in the police and leave them to decide the matter.
It all depends on the occupancy rates, if they are busy they will move you along, if it is quiet season and you and your clients are discreet they leave you alone.
The biggest giveaway to Hotels is the request for extra towels.