How much per hour or day?

I use the spot hero app and through that it was $15 for a whole day

Hi Gina, All of our daily rates can be found on our site. We encourage you to purchase directly through our site as well for the lowest rate. Link is below. Hope to see you soon! https://millenniumgarages.com/rates/

If I pay for a day parking, can I obtain a pass to come and go?

I stayed for 3 hrs and paid 33 dollars

Definitely pay online, it is a fraction of the cost. If you pay at the garage, it is close to $40!!