Heads up unlimited raising on the river

[jively]

Yesterday I was playing $4/8 at Foxwoods. I raise with AJo on the button, and there were 3 or more callers. Flop comes AQx. It's checked to me and I bet, and I get 2 callers. Turn is a K. Checked to me and I bet, and I get 1 caller.

River is a 10, giving me the nut one-card straight. The board is not paired, and there isn't 3 to a flush on board, so I have the nuts. Checked to me, and I bet. The other player check-raises. I 3-bet. He 4-bets. Someone at my side of the table says "ok, chop the pot already."

I figure it's a chopped pot, so I call. My opponent proudly shows TT, for a set of tens on the river. Now, of course, the guys on my side of the table say I should have kept raising...

What do you think? I definitely should have at least 5-bet.

-Tom