I laminated the Face page of my passport in color. Will this be ok to carry in case of trouble? It is wallet size..

Yes that is actually the best thing to have as long as, like Skink stated, you have a copy of your entry stamp on the back. A few days ago when the police came in checking la Mansion, My friend and I both had just the credit card size laminated copy. NO problem, no one questioned the validity of using this, everything was fine. If confronted by the police, just remain calm, be relaxed (for the most part they are just doing their job), be polite, don't act arrogant, don't have an attitude and there will be no problem. If they were to give you a hassle over the copy and try to get you to "pay a fine" on the spot, tell them to take you to your hotel room and you will be glad to show them your actual passport which under the USA and CR treaty you are not required to carry while here (just the copy) OR they can take you in! In 99.999% of the cases they are not going to carry you in because they know they are in the wrong and they are just trying to get a 'bribe' out of you!! As long as guys continue to "fold" and pay the bribe, the "bad" cops will continue to try to extort money from us!