Certainly this sounds like the type of interference the manual makes mention of, especially if you can consistently reproduce it at that specific location. Curious to know what kind of towers they are. To me, red & white towers usually means systems for aircraft navigation and I imagine can emit a fairly strong RF signal. Time to find a new convenience store...

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

2007 Camry Hybrid (in service June 2006)
FE: 6.77L/100km (34.8 mpg) over 37750km (23450mi)
75% city - Ave trip 20 min - 2 Winters