Interesting. I don't recall seeing anything like that, but without a tall van yet, haven't really been looking. Must be the older hotels. I'm sure that you definitely need to pay attention. When I hauled two kayaks on top of my VW Syncro camper I was probably at Transit height and I taped a piece of paper to the dash with the height in inches and metric to remind myself.
Google Street View is helpful!
I went to book this place, but that is the only entrance to the parking (there is a fence on the backside of that lot, but always locked). You have to enter/exit the front entrance only due to that locked gates. Oops.
Big open parking lot in the back, close the beach and boardwalk.
link to google maps street view of110 Riverside Ave Santa Cruz, California
I found another place, but once I arrived spotted "street parking for residence permit holders only" as the HR-EL was a bit long to get into the parking spaces. Thankfully the hotel has temporary permits for hotel guest to allow street parking. The catch was once we arrived, it was by foot or Uber, so we didn't lose our space. Beach town fun. The irony was it was much faster to walk everywhere. I was in town for the Santa Cruz Triathalon. Just had a shoulder bag to stuff gear into and cycled down the transition area for the event.