I don't think the auto-open grocery doors would do it. I believe they are infrared detectors and are not a source of significant radio waves... RF usually passes thru people so would not be a good way to detect them coming to the door...

Two climate control systems, one inside and the other at the tailpipe.

2007 Camry Hybrid (in service June 2006)
Distance: 36187km (22486mi) over 24 mths (ave trip 20 min)
FE: 6.80L/100km (34.6 mpg)
Dealer repairs reqd: none to date