Upon arriving at the hotel around midnight we were shocked to find police officers walking the premises. They stated casually “Yes, you can go in, but there is no one to check you in”. The entrance doors opened, but no staff were present at the ft desk or anywhere on the premises. Multiple families were left w/o assistance for ck-in. Those who were already checked in were unknowingly staying in an unsecured facility w/out any hotel staff present. Given the complete lack of on-site staff, the family waiting upon my entry contacted Hilton Customer Care. They were unable to provide a solution or contact number for a GM. Attempts to seek help from other H2S area hotels were futile as they stated they were not connected. I spk w/ Trisha from H2S in Eastgate who kindly stayed on the phone w/ me offering guidance on where I may find a # as I searched around the check-in desk & into the open office. Out of concern for the safety and well-being of a missing employee, guests, including my own family, I was compelled to call 911 at 1:05AM. I spk bk to the CPD.@ 1:30 AM, they stated they had already cked out the premises & there was nothing they cld do. Luckily, some of my family had ckd in early so I woke them to accomodate family w/no room. Next morning, GM Angela & Travis, apologized but had to self-advocate to get 2 of 3 rooms comp for nt in question when I felt that was a no brainer, GM declined comping my 1 rm out of 3 for current day stay. Serious legal implications and no care