You just processed the Second Amendment, right there in your post.
The substance of the law tells us energy can “neither be destroyed nor created.” It doesn’t say that energy can “neither be destroyed nor created and this has always been true infinitely into the past.”
Here’s the most important point of my discussion with you: whether or not the law has always been true is a question that is separate from the substance of the law.
No. A law applies everywhere. Time is a where and a time interval is also an inverse measure of any particular amount of energy.
All the evidence that exists supports the conservation of energy law. Notice that there are no constraints, conditionals, or contingencies attached to the law. Notice that you are the one attempting to attach one. If you wish to dispute the law and attach a condiitonal: Provide some evidence. Otherwise the law stands as is in science.