Nah, lotta alarms have blue lights with similar patterns. Mine’s red and just does a Nitecore-style beacon, but the Jeep up the block has a blue one that has a long-blink (at least 30% duty-cycle).
Besides, I could always just hit the “panic” button and get lights’n’horn blaring to let me zero in on my car.
Or, I could just take my ol’ Nuron and get the exact gps fix on my car before I walk away, then use that to get back to it when I’m done.