Normal
Was surprised to read the OP and learn that this could even be an issue. I have a BL modulator on my bike and I think they flash 5 times and then go solid, maybe 4. Anyhow have ridden through all the states colored below with said modulated brake lights and have never had an issue. That said, I'm pretty sure I have actually applied the brakes in all the states I have ridden through but I could be wrong about Oklahoma and Nebraska