Your website said check in start at 3pm. Can you check in early if your flight arrives around 11 or noon? Thanks.

if room is available they will definitely check you in .

You can drop your bags off with them in the lobby and go do your thing. They will text you when your room is ready. You probably won't get into your room sooner than 3 but at least you don't have to lug your bags around until your room is ready.