Apparently there's a parking lot in which car key fobs are messing up:
Key fobs that suddenly won't unlock vehicles. Cars that won't start. Alarms that go off for no reason and can't be quieted. Something mysterious is thwarting drivers outside a grocery store in the small Alberta town of Carstairs — and it's sparking all kinds of theories.
The problems have been happening for weeks in the parking lot outside the Westview Co-op grocery store in Carstairs, a town of about 4,000 about 60 kilometres north of Calgary.
A longtime employee at the dollar store right across the street from the Co-op says it's all she hears some folks talk about when they come into her store to buy a battery for their fobs — and then discover that doesn't solve the problem.
"I've been at the dollar store almost four years," Laura Strate said, with a laugh.
"It's just bizarre. People are actually scared to go to the Co-op now because they don't know if their cars are going to start."
Seems likely that the problem's radio interference, unless someone's having fun.
Call in a couple of ham radio operators who like to foxhunt and they should be able to point you in the general direction of the problem within minutes. If the effects are as localized as they say it should be able to be pinpointed within an hour.
Question: How would a HAM radio operator go about finding the source of interference in a scenario like this, where car key fobs are malfunctioning across a parking lot?