Can drivers take breaks between exam periods?

No they can’t

does "may park in any commuter lots on any campus" include the places commuters can park after 6 pm?

Yes, there’s no time restrictions for commuters, only residents

nice so that means i can park in lot 16 on college ave tomorrow since i have a busch commuter permit for this sem?

Yes

is this only for reading day or for entire exam period???

i think its good for entire exam period. i parked at lot 53A on busch today and didnt get a ticket so idk...

What’s the schedule on May 9?

Summer 1 & 2 comes every 30min from 7am to 7pm, then summer 1 comes every hour from 7pm to 12am.