Newbie questions! Will be coming by motorcycle from Rico for Friday, 6/16.

First time to Telluride. Have a single day ticket for Friday. We will ride our motorcycle in early from Rico on Friday morning. What time should we arrive in the am? where should we plan to park our bike to catch the shuttle into the festival grounds? Our plan would be to ride back to Rico late. Is this a dangerous ride back late at night? Any suggestions would be greatly appreciated.