I was there!
Perhaps the description should be morning instead of evening - there was only one show scheduled - at 10 AM Sunday. Having hitchhiked overbite from upstate, I arrived at 7 AM to find the stairwell leading up to the venue filled, the line out the door, and the temperature below freezing. As the line grew to wrap around the block, Robert appeared outdoors to tell the hopefuls NOT to buy scalped tickets - he would get as many people into the event as possible, and if that failed to get all in, he would play a second set later for those still outside when the line was halted. So a 2nd separate admission event was added - if memory serves, that commenced at 12 noon. I was one of the lucky ones who got to see both. Another stays-with-me-to-this-day RF performance experience!