Where is the best and closest public parking lot?

None I know of. I parked on the street

About a 2 minute walk, including a minute waiting for the lights to change.

There is a free parking lot at the corner of Cushing Ave and Columbia Rd. Parking is first come first serve. T here is another public parking lot on Ramsey Street at the intersection of Dudley Street and Columbia Road, behind CVS Pharmacy.