Angle shooting at Green Valley Ranch?

$1-$2 NL at Green Valley Ranch, Sunday 5am. I have AsAc, there are 2 others in the hand and the pot is $200.

The board is J 5 9 K 9 with no possible flush. At showdown, one player declares "jacks and fives" and shows J5. The dealer (Bryan) pushes the J and 5 forward and announces "jacks and fives". For some reason (length of session, lateness of hour, general weariness) I believe I am beaten and muck my hand face down. Another player then corrects the dealer, pointing out that the winning hand should be jacks and nines. I suddenly realize my mistake and express my displeasure to the dealer for misreading the hand, but of course it is too late. I am sure that had the dealer pushed the jack and 2 nines forward, I would have been alerted to my 2 pair. From the corner of my eye, I discern that the floor (Bruce) prefers to keep a neutral distance.

This is the price one pays for marathon sessions and I only have myself to blame. Still, I know for a fact that Bryan and the player involved are friends and cannot put out of my mind that the player may have suspected an overpair and tried an angle with his declaration, with Bryan adding the final collaborative touch. Or maybe I'm a tad paranoid?

I will be more wary in the future and avoid playing when tired. As for the $200, I'll slowly get it back by regretfully withholding future tips to the mostly professional and friendly GVR poker dealers. Shouldn't take too long.