Supposedly my truck was reported to have been on a construction site, but no officer caught me in the act, can anything happen now and after the fact, I don't believe there is anything more than a possible report, because if an officer had seen me I think he would've just gotten me right then.
What are you being evasive about?
If you were trespassing, charges can be filed, even if the officer did not directly observe you.
If you were reported erronously, charges can be filed.
What will happen is if you are charged, you will contest the charges. If the charges are not warranted or supported by evidence, they will be dropped. If they are not dropped, then the prosecutor will need to meet the burden of proof to find you guilty.
At this point, it seems you have not been arrested or charged, so leave it be and don't tresspass (or even look cross-eyed at) any construction site as it is a serious felony.