You can park at the Venetian or Palazzo parking lots.
Is the parking lot right across the street plus you could park it at any of the hotel right there on the Strip within a block or so no more than five minute walk worst
Park at the Venetian.
Venetian parking lot. Or if you're feeling groggy, you can park at lvcc and take the tram
There is a garage attached. I believe they offer valet for most events. There is off street parking around center but be prepared to walk and I'm not sure if it's limited (2 hour, metered, etc). There is also parking at the hotel/casino as well as valet.
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