I have a friend that ALWAYS has a story to make you feel better, so in his honor, I present this:
We are DLR vets and always stay at the Grand Californian. Since we always drive, we belong to the "Kitchen Sink Club" bringing everything from a large cooler to a box fan, along with four times the luggage needed for our average trip. Bell Services has never batted an eye. Definitely seen luggage carts with similar contents to what you describe.
Fast forward to when DS was 12-18 mos (I can't remember exact age). We were trying to transition him to a toddler bed set up in a small alcove in our room. For some reason, he started dragging the dogs bed into the toddler bed and sleeping in it!
Appropriately horrified, we tried everything to convince him not to. As anyone with that age child can tell you, that didn't work so, to make it slightly better (?), DH went and bought said child a brand new dogbed, which he happily slept in on his own bed. Yes, that's right -- our child slept in a dog bed.
Knowing that we were taking him on his first multiple day trip to the Grand Cali and also knowing that he tended to reject the unfamiliar at that age, we realized quickly that we had no real choice but to drag the darn dogbed with us.
So, we drive up to the valet and open the hatchback for bell services (suddenly the giant cooler, fan, and mountain of luggage doesn't seem all that bad) and tell the bellman that everything goes with us. He starts pulling everything out and loading the cart, until just the dog bed is remaining. He goes to write the ticket and DH has to say "we need the dog bed too". Bellman looks around (no doubt wondering where the dog is) and dutifully pulls out the dog bed and puts it on the cart looking confused but not saying a word. Trying to make things better, DH says "we don't have a dog. Our son just likes to sleep in it.".

Although he might have been considering calling Child Protective Services, bellman just nodded and loaded it on the cart.
So yes, they have seen it all. Feel better?