Your concern is valid and noted. To the best of my knowledge, it is not illegal to have a break light that flashes a couple times before going solid. I have seen several cars in which the owners have modified the 3rd eye to flash continuously using a turn signal relay when the break is pressed. This is also not against the law. I had one police officer tell me that it would be good because it would get the attention of the driver behind you better than with regular solid on break lights. As long as the strobing isn't so excessive to the point that I could be mistaken for a police vehicle, it isn't against the law. This is why I want to have the lights flash no more than 3 total times and no longer than ¼ second total time before going solid. In addition, I still plan to have 2 standard brake lights functioning normally in the instance that my circuits fail.
As for the dirty power issue, I have already considered fixing this problem using electrical filters and regulators. The LED's are designed to run on a car's 12VDC electrical system and suck up a bit of amperage just due to the shear quantity of LED's I'm using, which is also why I am using MOSFET transistors. The ATtiny85 chip will run comfortably on 5VDC. I have already used a 5V linear regulator with a 10µF capacitor on input & ground, another 10µF capacitor on output & ground, and a .1µF ceramic capacitor also on output & ground. This gives me a very stable 5VDC output with a variance of no more than .001VDC, even with an input voltage variance of 9 - 16VDC. When put on an oscilloscope, this showed to be a very clean, stable, and quiet power source even with the engine running.
So, with that said, I am good with the wiring and circuit building side of it, but I am a newbie to the script writing side of things. Back to my original question. Using my "Final Result" script as a base which works fine, can someone help me figure out how to make the LED's go HIGH two or three times within ¼ second (250 ms) before going solid, then wait for the "Button" to go low before going to either the dimmed of off state controlled by the switch? Any attempts I have made so far have resulted in continuous strobing when the button is pressed. Any help would be appreciated.