This is coming from the perspective of someone who actually went to the event where The Rickmobile showed up in my major city.
So I went and checked it out! It was at 6th & Peabody with was essentially an entertainment area attached to a distillery and taco shop that also happened to have a hot dog shop inside it as well.
The Rickmobile was MASSIVE. It also housed all the merch they were giving away, by way of a wheel you spun as soon as you went in. I spun and got myself a nice little 14oz R&MTA Nalgene water bottle with some temporary tattoos.
The episode was chaotic, which is on brand for R&M, and the music they were playing before that was awesome! If you ever get the chance to go to one of these Rickmobile events, I highly recommend it. Was worth the over 1 hour drive from my house.