And maybe try entering when a car is driving into a hotel if you were questioned at the entrance gate*, so that the security guard will be focusing on questioning the car instead of you.
If you were questioned at the entrance door**, try waiting until a car park in the drop-off area, and follow people who got off the car.
*Entrance gate: Where cars drive in and people walk in to the hotel area.
**Entrance door: Where people walk in to the hotel building.
Sadly, that hotel doesn't have a drop in/off area. The lobby entrance is actually facing the street. The least thing I can enter the hotel is when the guard is not looking at me, so I can quickly enter the hotel.