Pre-k pass register at park?

Has anyone registered for Pre-k pass AT the park AFTER the deadline? I know from experience you don’t actually have to activate by the deadline (once I actually drove all the way to Williamsburg to activate it and was told, oh those deadlines aren’t real😏). However, I can’t even register for a pass on the website anymore at this point. I realize this is our fault, but we didn’t initially plan to go this summer and things have changed. We have 4 kids, so being able to use the pass for two would be huge for us.