I didn't think there were any limits on Thursdays. The Universal website says only Fri, Sat, and Sun are blocked during Sept and Oct (unless it's a blockout day for Gold--since I have Platinum, I'm not exactly sure when those are).
Which also means that should anyone be going the final weekend in November, the parking limit should be lifted in it's entirely by then! And Thursday and Wednesday in October should also be fine.
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