Everything is possible and nothing is possible. It is all in who you talk to, how you ask, and if there is a tip involved.

I'm very confident that I can get these chips cashed at any casino I decide to play at. Sit down at a table, make a few reasonably sized plays, call the pit boss over and ask him politely if he will allow you to exchange..... I don't think I'll be told no. Would they prefer that you leave, hop into a cab and head over to the other casino? No.