Updated August 2, 2023
If you live in a motel/hotel for more than 30 consecutive days or you clearly show an intent to remain for a continuous period longer than 30 days, your situation falls under Nevada Revised Statutes Chapter 118A, which governs the landlord/tenant relationship.
One of the fundamental rights afforded to a tenant, as defined by the statute, is the right to occupy a dwelling unit to the exclusion of others. Your landlord is also obliged to keep the unit "habitable," which includes providing "essential services," i.e., heat, running water, hot water, electricity, and gas. Those are the basics; if your rental agreement covers other services, such as air conditioning, then those services are also deemed essential. A functioning lock is also considered an essential service.
If it's not addressed expressly in the rental agreement, the landlord is obliged to provide maintenance and waste-removal services, without charge. Similarly, it's fine for the tenant to have children and pets in the dwelling, unless otherwise stated in the agreement.
A tenant has the right to display the flag of the United States in certain areas, subject to certain provisos.
While flying a flag out of your window (if you're in one of those rare Las Vegas hotel rooms that has a window that opens) or housing a herd of goats in your suite would likely be frowned on by most hotels, presumably, rental payment and possession rights are at the crux of the casinos' fear of any guest extending his or her stay beyond 30 days. The onus is on landlords to evict non-paying tenants and legally they can't do that by, say, changing the locks or cutting off your water supply or banging repeatedly on your door in the middle of the night.
If you refuse to leave and/or pay, the landlord must take you to court in order to recover overdue rent and damages.
Hence, Las Vegas hotels and motels don't take any chances.